00:00:03
NARRATOR:
Beneath the clear blue waters
00:00:05
of the Mediterranean lie
treasures of ancient empires,
00:00:10
relics of their bloody wars,
00:00:15
and secrets of the seismic
forces that shaped them,
00:00:19
lost beneath the waves...
00:00:24
until now.
00:00:27
Imagine if we could
empty the oceans,
00:00:30
letting the water drain away
00:00:32
to reveal the secrets
of the seafloor.
00:00:36
Now, we can.
00:00:41
Using the latest underwater
scanning technology,
00:00:45
piercing the deep oceans,
00:00:48
and turning accurate data
into 3D images.
00:00:54
This time,
what apocalyptic disaster
00:00:58
triggered the collapse
of Europe's first civilization?
00:01:03
Can an extraordinary
2,500-year-old shipwreck
00:01:07
unlock the secrets
of Ancient Greece?
00:01:11
How did these deadly objects
00:01:13
turn Ancient Rome
into a superpower?
00:01:17
And why does the Sin City
of the Roman Empire
00:01:20
lie abandoned
beneath the waves?
00:01:26
(music)
00:01:29
(music)
00:01:34
(music)
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Ancient people call it
the Middle Sea,
00:01:45
the center of the known world.
00:01:47
The Egyptians,
Greeks and Romans
00:01:49
build mighty civilizations
upon its shores.
00:01:54
Empires battle for supremacy
across its waters.
00:01:59
Cities grow rich and powerful
through trade.
00:02:03
The Mediterranean becomes
a superhighway,
00:02:07
connecting cultures that
will shape the modern world.
00:02:12
But only by draining the sea
can we reveal
00:02:15
its biggest and most
terrifying secret.
00:02:19
What happened on this
spectacular Greek island
00:02:23
to doom an entire civilization?
00:02:29
COSTAS SYNOLAKIS: They must have
thought this was it,
00:02:31
the end of the world.
00:02:35
NARRATOR: 3,600 years ago.
00:02:38
15 centuries before
the Roman Empire.
00:02:42
A mysterious people dominate
the Mediterranean.
00:02:46
We call them the Minoans.
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Their home is on Crete.
00:02:53
Here they build magnificent
temples and palaces,
00:02:57
and decorate them
with stunning frescoes.
00:03:02
Celebrating their love
of life and of nature.
00:03:10
But there's a darker side, too.
00:03:13
The Minoan royal palace
at Knossos
00:03:16
is said to contain a labyrinth.
00:03:19
Home to the Minotaur.
00:03:22
A fearsome creature...
00:03:24
part man, part bull,
00:03:26
with a terrible appetite
for human flesh.
00:03:32
But apart from a grisly myth,
00:03:35
much about the Minoan world
still remains a mystery.
00:03:39
MICHAEL SCOTT: We can't
decipher their language.
00:03:41
We only have their
archaeological remains,
00:03:43
but what that tells us, I think,
00:03:45
is that they were
extremely imaginative,
00:03:47
they were extremely adventurous,
00:03:50
and that they developed
00:03:51
a sophisticated
hierarchical society
00:03:54
that was capable of producing
elements of art and architecture
00:03:58
which still astound us today.
00:04:03
NARRATOR: Historians do know
that the Minoans spread
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across the Mediterranean,
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trading olive oil and pottery
for gold and ivory,
00:04:12
growing ever richer
and more powerful.
00:04:16
And then,
in the 15th century BC,
00:04:20
their ancient civilization
begins to fade
00:04:23
from the pages of history.
00:04:28
For centuries,
no one knows why.
00:04:34
Until scientists start
to look closely
00:04:37
at the nearby island
of Santorini.
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SYNOLAKIS: Santorini, it has
this very, very calm water.
00:04:48
It's almost like it plays
with you and deceives you.
00:04:52
Looking at this view,
you would never imagine
00:04:55
how dangerous it once was
and how dangerous it is.
00:05:00
NARRATOR: The island is famous
00:05:02
for its spectacular,
jagged cliffs,
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which tower above
a beautiful natural harbor.
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But what created them?
00:05:12
And can they help explain
the downfall of the Minoans?
00:05:21
Marine geologist Evi Nomikou
believes that crucial clues
00:05:26
may lie deep beneath
Santorini's tranquil waters.
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EVI NOMIKOU:
As I was born in Santorini,
00:05:32
I wanted to study the area
to reveal their secret.
00:05:38
Being a marine geologist means
that you're having access
00:05:42
to the mystic world
of the seafloor,
00:05:45
so you can see features
that nobody else can see.
00:05:50
NARRATOR:
She harnesses the latest
00:05:51
multi-beam sonar technology
00:05:54
to scan the depths
of the huge bay.
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By transforming her data
into powerful computer imagery,
00:06:03
it's possible to drain away the
waters of the Mediterranean...
00:06:07
(music)
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...and reveal Santorini's
terrifying secret.
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The sheer cliffs tower
1,000 feet above sea level
00:06:22
and drop a further 1,000 feet
to the seafloor.
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Framing a vast basin
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large enough to hold
10,000 Olympic stadiums.
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The basin is a huge crater,
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and Santorini itself is the
remnant of a gigantic volcano.
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(music)
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But that's not all.
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On the rim of the crater,
00:06:52
more evidence of Santorini's
violent past.
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(music)
00:07:01
(screams)
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Undiscovered until 1967,
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these shattered ruins
are all that remain
00:07:10
of a once-thriving city,
00:07:13
known today as Akrotiri.
00:07:16
It was destroyed when
the volcano erupted,
00:07:19
and buried under so much ash
that it remained hidden
00:07:23
for 3,500 years.
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LEFTERIS ZORZOS: It's almost
like a window back in time,
00:07:29
where you can see how it was
when it was destroyed.
00:07:33
NARRATOR: And deep in the ruins
00:07:35
archaeologists discover
something remarkable.
00:07:40
(rumbling)
00:07:44
These stone steps
were not broken
00:07:46
by the ash and lava
from a volcano.
00:07:49
(rumbling)
00:07:54
They were shattered
by an earthquake.
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ZORZOS: When the earthquake
happened,
00:08:01
everyone fled their town,
00:08:04
but then they came back to start
rebuilding their homes,
00:08:06
and this is exactly
what we're seeing here.
00:08:11
NARRATOR: Believing
the danger over,
00:08:14
people move furniture
into the streets,
00:08:16
so they can start repairing
their houses.
00:08:20
ZORZOS: We're seeing the beds
placed outside of their homes,
00:08:23
we're seeing the stones and mud
00:08:26
getting ready to be used
to rebuild these homes.
00:08:30
NARRATOR: But then they are
struck by an apocalypse.
00:08:34
(rumbling)
00:08:37
(explosion)
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The first stage of the eruption
is so powerful
00:08:46
that it engulfs Akrotiri
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and suffocates the whole island
in a thick layer of debris.
00:08:56
And the date of this
cataclysmic eruption?
00:08:59
Around 1625 BC, the same time
as the Minoans
00:09:05
begin to disappear from
the pages of history.
00:09:09
But how could a single eruption
trigger the collapse
00:09:12
of a great civilization based
on an island 70 miles away?
00:09:19
Until recently most scientists
have focused
00:09:22
only on the evidence
above ground.
00:09:26
But Evi Nomikou believes
that once again
00:09:29
the real clues lie underwater.
00:09:34
EVI NOMIKOU: Scientists
have been occupied
00:09:35
studying only
the on-land geology,
00:09:38
so we are starting
mapping the seafloor,
00:09:40
in order to find out
the total volume
00:09:43
of that big, destructive
eruption.
00:09:48
NARRATOR: Evi heads outside
the great crater
00:09:50
to hunt for new evidence
on the seabed.
00:09:56
And what she finds
is extraordinary.
00:10:00
Proof of the sheer scale
of this eruption.
00:10:06
As the waters of
the Mediterranean recede
00:10:08
still further, they reveal
wide stone terraces,
00:10:13
fanning out from
the mouth of the volcano...
00:10:17
the size of 20-story buildings.
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They point to one cause.
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They're called
pyroclastic flows:
00:10:35
torrents of superheated gas
and molten rock.
00:10:40
NOMIKOU: The pyroclastic flow
can cover everything.
00:10:43
They travel like a hurricane.
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They can destroy
everything on their path
00:10:48
because of the high temperature,
up to 1,000 Celsius.
00:10:57
NARRATOR:
When they hit the sea,
00:10:58
the pyroclastic flows cool and
become solid ramparts of rock.
00:11:05
Around Santorini, they stretch
for a staggering 20 miles
00:11:10
in every direction.
00:11:13
Evidence of multiple eruptions
lasting for days.
00:11:20
By measuring
the stone terraces,
00:11:22
scientists calculate that
the volcano throws out
00:11:26
14 cubic miles of debris.
00:11:29
An eruption far more powerful
than they had ever imagined.
00:11:34
It's one of the biggest
volcanic explosions
00:11:37
in the history of the planet.
00:11:39
(explosion)
00:11:47
SYNOLAKIS: Let's try to imagine
what this eruption looked like.
00:11:51
If you were sitting somewhere in
any of the neighboring islands,
00:11:55
it would have appeared
like the end of the world.
00:11:59
NARRATOR: At first
the volcano blasts out
00:12:01
a column of superheated debris
more than 20 miles high.
00:12:07
SYNOLAKIS: This huge funnel
of black ash and cloud
00:12:11
could have been seen going
all the way to the sky.
00:12:14
NARRATOR: Some of the volcanic
plume falls to Earth
00:12:17
many miles from Santorini.
00:12:21
SYNOLAKIS: It would have been
raining pumice
00:12:23
on the surrounding islands.
00:12:25
NARRATOR: But now
the volcano unleashes
00:12:27
its most devastating surprise,
00:12:30
and in its path lies Crete,
the center of the Minoan world.
00:12:40
NARRATOR: 70 miles
from Santorini,
00:12:42
the Minoans on Crete see the
soaring column of ash and smoke
00:12:46
from the erupting volcano.
00:12:49
But they have no idea
of the disaster to come.
00:12:54
The volcano blasts millions
of tons of lava into the sea.
00:12:59
Triggering wave after wave
of powerful tsunamis.
00:13:05
SYNOLAKIS: When the tsunami
arrived in Crete,
00:13:07
they were probably taken
totally by surprise.
00:13:10
Imagine seeing
this wall of water,
00:13:14
in some places ten meters high,
advancing in.
00:13:18
It must have looked like
this was the end of the world.
00:13:21
Totally unexpected.
00:13:22
The wrath of the gods.
00:13:25
NARRATOR: Entire coastal
communities are swept away
00:13:28
by waves up to 30 feet tall.
00:13:33
Ports are destroyed
and ships smashed to pieces.
00:13:44
And the gods
aren't finished yet.
00:13:48
After the eruption
and the tsunamis,
00:13:51
another disaster is looming.
00:13:54
Clouds of volcanic ash
cast a deadly pall
00:13:57
over the whole Mediterranean,
dramatically cooling the Earth.
00:14:05
SCOTT: There were a series
of effects from the eruption
00:14:08
that together fatally weakened
the Minoan civilization.
00:14:13
A tsunami event, a divine event.
00:14:16
The destabilization
of their economy,
00:14:19
the failure of harvests
over several years.
00:14:22
That was the moment when Minoan
civilization started to die.
00:14:29
NARRATOR: Without their ports
and ships,
00:14:31
the Minoans lose their mastery
over the Mediterranean.
00:14:37
Invaders challenge their power.
00:14:44
And as the sun sets on the
collapsing Minoan civilization,
00:14:48
new powers arise.
00:14:51
500 miles from Crete,
just off the coast of Cyprus,
00:14:55
the draining waters
of the Mediterranean
00:14:58
reveal a remarkable discovery
almost 2,500 years old.
00:15:06
What can it tell us about
the lives, the power,
00:15:10
and the pleasures
of the Ancient Greeks?
00:15:14
In the centuries after
the fall of the Minoans,
00:15:17
the city-states of Greece
00:15:19
produce dazzling art
and architecture.
00:15:23
Forging ideas in mathematics,
democracy and theater
00:15:28
that still shape our world.
00:15:32
The Greeks take to the sea
in their wooden sailing ships
00:15:36
risking their lives
to explore, colonize,
00:15:39
and trade with each other.
00:15:44
Hundreds of boats shuttle
across the Mediterranean,
00:15:48
linking settlements in
Africa, Asia and Europe.
00:15:52
They are the lifeblood
of Greek civilization.
00:15:58
But these ships are a mystery.
00:16:01
Only a few remnants have
survived to offer a glimpse
00:16:05
into how they worked
and what they carried...
00:16:09
until now.
00:16:12
A shipwreck,
recently discovered
00:16:14
in the seas off Cyprus,
00:16:16
is helping to bring this
lost world back to life.
00:16:23
Archaeologist Stella Demesticha
and her team
00:16:27
are unlocking
the wreck's secrets.
00:16:32
Where did it come from?
00:16:34
What was it carrying?
00:16:40
And why did it sink?
00:16:43
STELLA DEMESTICHA: It's pretty
deep, so it takes a while
00:16:46
when you're diving before
you can see the sea bottom.
00:16:52
SCOTT: It looks all very
higgledy-piggledy,
00:16:54
it looks like, well, someone's
dropped a whole load of garbage
00:17:00
in the ocean.
00:17:03
NARRATOR: But this apparent
chaos is packed with clues
00:17:06
about the lost world
of the Ancient Greeks.
00:17:10
DEMESTICHA: This is really
fantastic for an archaeologist.
00:17:14
NARRATOR: Exploring such
a deep and complex site
00:17:17
is challenging.
00:17:21
DEMESTICHA: Diving at 45 meters
has several constraints,
00:17:26
and time is one of them.
00:17:29
The maximum we can stay per day
is 20 minutes.
00:17:34
NARRATOR: It's almost
impossible to work effectively
00:17:36
at such depths.
00:17:40
So the team explores the site
00:17:42
using a technique
called photogrammetry,
00:17:45
taking hundreds of pictures
of the wreck
00:17:47
from different angles.
00:17:52
DEMESTICHA: So instead of trying
to make decisions at 45 meters
00:17:58
where your brain
doesn't work properly,
00:18:01
taking the pictures allows us
to have the luxury
00:18:05
of diving through the screen
of our computer
00:18:08
as long as we wanted.
00:18:14
NARRATOR: Using the unique
photogrammetry data,
00:18:17
it's possible
for the first time
00:18:19
to drain the Mediterranean...
00:18:23
allowing sunshine to illuminate
a site that's been in darkness
00:18:27
for 2,500 years.
00:18:30
(music)
00:18:34
The debris lies
in the shape of a ship.
00:18:41
Much of the timber hull
has rotted away,
00:18:44
leaving only its ancient cargo.
00:18:49
Hundreds of earthenware jars,
known as amphorae,
00:18:54
piled neatly on top
of each other,
00:18:57
many of them still intact.
00:18:59
(music)
00:19:04
SCOTT: Amphorae look very odd.
00:19:05
They look very ungainly
and not very well designed
00:19:09
to be storage jars or certainly
container jars on a sea vessel.
00:19:13
But they are a design that's
evolved over centuries.
00:19:16
And actually if you stack them
all really neatly together,
00:19:18
they do all make sense,
00:19:21
and they were the way
that you transported things
00:19:24
around the ancient world.
00:19:27
NARRATOR: Amphorae like this
00:19:29
give the archaeologists
some vital clues.
00:19:34
Their distinctive shape varies,
00:19:36
depending on where and when
they were made.
00:19:41
This one dates from
the 4th century BC
00:19:44
and comes from
the Greek island of Chios,
00:19:47
500 miles from the wreck site.
00:19:51
So what was in it?
00:19:55
Although the amphorae
are all now empty,
00:19:58
they offer intriguing clues
about what they once contained.
00:20:02
DEMESTICHA: In this case we have
the opportunity to see evidence.
00:20:07
This dark coating
inside the amphora,
00:20:10
we have to imagine that it was
all over the inside walls,
00:20:14
and it was pitch, or resin,
00:20:17
so it was a kind of sealant
to make these walls waterproof.
00:20:22
So we are sure that these
are Chian wine containers.
00:20:27
NARRATOR: Wine from the island
of Chios is highly prized
00:20:30
throughout
the Ancient Mediterranean.
00:20:33
The wrecked ship is loaded
with the equivalent
00:20:36
of more than 10,000
modern-sized bottles.
00:20:40
A hugely valuable cargo
and a telling insight
00:20:44
into the Ancient Greek trade
in luxury goods.
00:20:49
SCOTT: The Greeks
loved their wine.
00:20:53
This little wreck off Cyprus
00:20:54
is the tip of the iceberg
of the wine trade.
00:20:57
It was an absolutely fundamental
part of their society
00:21:02
and of all their
cultural experiences,
00:21:04
whether that be religious
00:21:06
or whether it be
letting their hair down
00:21:08
and having a really good time.
00:21:11
DEMESTICHA: The greatest thing
about Ancient Greeks
00:21:14
is their love for life.
00:21:15
They like to talk, to think,
to discuss, to drink, to party.
00:21:21
SCOTT: There was a great profit
to be made
00:21:23
in making sure that the rich
around the Mediterranean world
00:21:27
had a good supply of
very good wine to drink.
00:21:33
NARRATOR: Trading in wine
and other luxury items
00:21:35
makes good money for
the Greek city-states.
00:21:39
But their ships carry
an even more precious cargo,
00:21:42
as they traverse
the Mediterranean and beyond,
00:21:46
from Egypt to Southern France,
00:21:49
they spread Greek
ideas and culture
00:21:52
that influence
Western civilization
00:21:54
to the present day.
00:21:57
But this cargo never
reaches its destination.
00:22:02
DEMESTICHA: One of the most
important questions that we ask
00:22:05
in shipwreck archaeology
is why this ship sunk.
00:22:13
NARRATOR: The biggest clue is
the shape of the debris.
00:22:17
The way that the jars
lie grouped together
00:22:20
rather than scattered about
00:22:22
proves that the vessel
didn't capsize.
00:22:28
So what did happen?
00:22:31
DEMESTICHA: The ships in
antiquity were open-decked.
00:22:35
The hold was not covered
with a deck,
00:22:38
so when the waves were
very high, or we have a storm,
00:22:42
then the water was coming in.
00:22:47
NARRATOR: The ship is most
likely overwhelmed by a wave.
00:22:55
Pulled down by the weight
of all the expensive wine
00:22:58
to a watery grave.
00:23:00
(music)
00:23:07
(music)
00:23:10
(music)
00:23:15
As the waters
of the Mediterranean
00:23:17
continue to drain away,
00:23:21
they uncover unique evidence
of a titanic clash
00:23:25
between two ancient
superpowers.
00:23:29
This is the site of a battle
00:23:31
that would change
the course of history.
00:23:35
WILLIAM M. MURRAY: When they saw
the Romans in front of them,
00:23:36
they had one of these
'Oh, no!' moments.
00:23:42
NARRATOR: What can these
bizarre objects on the seabed
00:23:46
tell us about the merciless
rise of the Romans?
00:23:55
NARRATOR: The third century BC.
00:23:58
Rome already controls
mainland Italy,
00:24:01
and has ambitions to expand
across the whole Mediterranean.
00:24:05
But its navy is weak.
00:24:08
JON HENDERSON: Rome was known
as being a terrestrial power,
00:24:10
not a maritime power, it was not
known for fighting sea battles,
00:24:14
but they were set on
a militaristic path
00:24:16
of maritime control.
00:24:18
NARRATOR: This brings them
into conflict
00:24:20
with another superpower
of the Mediterranean:
00:24:23
the Carthaginians.
00:24:27
SCOTT: The Carthaginians were
great traders, great seafarers,
00:24:30
controlling most of the west
and central Mediterranean,
00:24:33
and it was that fact
00:24:35
that brought them
into conflict with Rome.
00:24:39
NARRATOR: Carthage,
from its position
00:24:41
on the north coast of Africa,
00:24:43
commands the most powerful navy
in the region.
00:24:47
To challenge Carthage,
00:24:49
Rome must first learn
a new kind of naval warfare.
00:24:56
So begins a titanic struggle
00:24:59
that will last for
more than 100 years.
00:25:03
The winner will dominate
the Mediterranean
00:25:06
for the next seven centuries.
00:25:11
Its first truly decisive
encounter happens
00:25:14
somewhere off
the west coast of Sicily,
00:25:18
near the Egadi Islands.
00:25:21
Here, according to
ancient historian Polybius,
00:25:25
the mighty navies
of Rome and Carthage
00:25:28
go head-to-head
in an epic battle.
00:25:33
He describes the clash
of two huge fleets
00:25:36
involving 400 ships,
and at least 100,000 men...
00:25:43
turning the waters of
the Mediterranean blood-red.
00:25:51
But Polybius writes his history
00:25:53
at least half a century
after the battle
00:25:57
and for a Roman audience.
00:26:00
So how reliable is his account?
00:26:04
However huge this battle
may have been,
00:26:06
no one has ever been able
to find any trace of it.
00:26:11
MURRAY: Taking the description
from an ancient historian
00:26:14
and actually pointing
to the exact place
00:26:17
on the surface of the globe
where the battle took place
00:26:20
is extremely difficult.
00:26:23
NARRATOR: Bill Murray and
a team of marine archaeologists
00:26:26
are on the trail of
some extraordinary finds
00:26:29
reported by local fishermen.
00:26:33
But the area they need
to survey is huge,
00:26:37
many miles across.
00:26:40
So first, they sonar scan
the seabed.
00:26:48
Then they launch
a remotely operated vehicle
00:26:51
to investigate the finds.
00:26:53
(music)
00:26:56
(music)
00:27:01
PETER CAMPBELL: As you're
watching the live feed
00:27:03
of the video from the ROV, and
it's going across the seafloor,
00:27:06
the shapes suddenly
pop into view,
00:27:08
and it's incredibly distinctive.
00:27:09
So there's a great moment
of excitement
00:27:11
as these objects are first seen.
00:27:14
NARRATOR: They discover
a truly astonishing shape
00:27:18
300 feet down.
00:27:24
CAMPBELL: These are
the rarest artifacts
00:27:25
we have from antiquity.
00:27:30
NARRATOR: So what is it?
00:27:36
Using the data gathered
by the expedition,
00:27:39
it's possible to pull the plug
on the Mediterranean,
00:27:42
emptying the waters from
around the coast of Sicily.
00:27:46
The mysterious object on the
seabed comes clearly into view.
00:27:51
It's three feet wide
and made of metal.
00:27:54
Its jagged edges suggest
a deadly purpose.
00:27:59
SCOTT: So these are
bronze battering rams.
00:28:02
They would have been attached
to the front of a ship,
00:28:06
and this was the main method
00:28:08
of attacking and destroying
ships in antiquity.
00:28:12
NARRATOR: Rams are
the superweapons
00:28:14
of ancient naval warfare.
00:28:17
The large vertical fin is
like a splitting axe,
00:28:21
and the horizontal fins
are like blades,
00:28:24
to slice through
an enemy ship's timbers.
00:28:27
SCOTT: You didn't
have cannon fire,
00:28:29
there were no kind of guns
a la Pirates of the Caribbean
00:28:31
or anything like that.
00:28:33
The only way to take down
the enemy ship
00:28:35
was to smash a massive hole
in the middle of it
00:28:37
and let it sink to the bottom,
00:28:39
and the only way of doing that
was to ram it.
00:28:41
(crashing)
00:28:46
NARRATOR: A closer look reveals
00:28:47
that this ram is
battle-damaged,
00:28:50
its metal edges
broken and distorted
00:28:52
by a violent collision.
00:28:57
MURRAY: In one episode
00:28:59
we're told that the men
up in a forward tower
00:29:02
were literally catapulted
out of the tower
00:29:05
and into the sea
after a ram strike.
00:29:12
And we're told that it was
an effective ram strike,
00:29:14
because as the ancient author
wrote, 'Bronze hit bronze.'
00:29:25
NARRATOR: And this isn't
the only discovery.
00:29:29
Based on data from the survey,
00:29:32
draining away more
of the Mediterranean
00:29:34
reveals a remarkable pattern.
00:29:37
Ten more rams, scattered
00:29:40
across two square miles.
00:29:43
More than enough
to convince historians
00:29:46
that an important naval battle
took place here.
00:29:51
But is it the legendary
Battle of the Egadi Islands
00:29:55
described by Polybius?
00:29:59
An unlikely piece of evidence
may hold the answer.
00:30:06
A single amphora storage jar,
found near one of the rams.
00:30:13
By analyzing its shape
00:30:15
archaeologists can narrow down
when and where it was made.
00:30:21
It's like finding
a black box recorder.
00:30:26
The team believes the amphora
is Carthaginian
00:30:29
and dates
to the 3rd century BC,
00:30:32
the same period as the Battle
of the Egadi Islands.
00:30:38
The historian Polybius
describes how the Carthaginians
00:30:41
are carrying supplies for
their soldiers in Sicily.
00:30:46
Could this amphora
be part of that cargo?
00:30:51
POLYBIUS: The plan was to cross
to Mount Erice,
00:30:53
unobserved by the enemy,
and offload the stores.
00:30:57
Then take on soldiers
in the lightened ships
00:30:59
and engage the enemy.
00:31:03
NARRATOR: But the Carthaginians
never make it.
00:31:07
Compelling evidence
from the drained seabed
00:31:10
now indicates this is
where it all happened.
00:31:14
MURRAY: A number of rams line up
and give us a bearing
00:31:17
that makes some sense,
00:31:20
and that's fascinating,
that is exciting.
00:31:23
NARRATOR: The words
of an ancient historian
00:31:25
and the evidence
of modern technology
00:31:28
both point
to the same conclusion:
00:31:31
this is the site of the Battle
of the Egadi Islands.
00:31:38
MURRAY: It was an important
enough event for the Romans
00:31:40
that they remembered the date.
00:31:41
It was actually written down
in a calendar somewhere,
00:31:44
and we know that it occurred
on 10 March, 241 BC.
00:31:51
This is not your typical naval
battle where both sides prepare.
00:31:55
This was a battle
of opportunity.
00:32:00
NARRATOR: The Carthaginians,
still laden with supplies,
00:32:04
head for shore believing
the coast is clear.
00:32:10
But the Romans keep dozens
of their ships hidden
00:32:13
behind one of the islands.
00:32:15
It's a huge ambush.
00:32:18
MURRAY: The lookouts spied the
Carthaginian ships coming in,
00:32:22
and as the Carthaginians saw
the Romans in front of them,
00:32:25
they had one of these
'Oh, no!' moments.
00:32:28
CAMPBELL: So we're talking about
tens of thousands of men
00:32:31
on board these ships,
00:32:32
and they would have lined up
across from each other
00:32:34
in lines of battle,
00:32:36
headed toward each other
at a great rate,
00:32:38
and smashed into each other
head-to-head.
00:32:42
(crashing)
00:32:46
(men yelling)
00:32:52
NARRATOR: Polybius describes
what happened next.
00:32:57
POLYBIUS: Before long,
they were defeated.
00:33:00
50 of the Carthaginians' ships
were sunk,
00:33:03
and 70 captured
with their crews,
00:33:05
while the prisoners
numbered almost 10,000.
00:33:10
NARRATOR: Another discovery on
the seabed is a stark reminder
00:33:14
that this epic victory came
at a high price in human life.
00:33:25
This is the last resting place
of thousands of brave men.
00:33:33
And it has been judged
so important
00:33:36
that its exact location
must remain secret.
00:33:41
CAMPBELL: There's nothing else
really like this.
00:33:42
It's the first
ancient battle site
00:33:44
that's ever been discovered.
00:33:45
It's just an incredible
debris field.
00:33:49
SCOTT: The Battle of the Egadi
Islands was the turning point,
00:33:51
when a Roman fleet managed
to absolutely trounce
00:33:57
a Carthaginian fleet at sea.
00:34:00
CAMPBELL: This was
the defining battle
00:34:02
where Rome went from a regional
power to a superpower.
00:34:07
NARRATOR: The struggle between
Rome and Carthage
00:34:09
would last for another century.
00:34:12
But victory here
set Rome on a path
00:34:15
to shaping the destiny of
Europe for the next 700 years.
00:34:22
As the last of its water
runs away,
00:34:25
the Mediterranean reveals
a final secret.
00:34:29
What can draining
the Bay of Naples teach us
00:34:33
about the glory and the
decadence of the Roman Empire?
00:34:43
NARRATOR: 2,000 years ago
00:34:45
Rome has grown far beyond
its Italian homeland.
00:34:49
Its legions control a vast area
00:34:52
from North Africa
to Northern Europe,
00:34:56
from Spain to the Black Sea,
00:34:59
and the Roman navy dominates
the Mediterranean,
00:35:03
from its port next
to the city of Baiae
00:35:07
in the shadow
of mighty Vesuvius.
00:35:12
Baiae earns a reputation as
the Sin City of Ancient Rome.
00:35:17
It's famous for debauchery
and excess.
00:35:24
But what really went on
in this seaside party town?
00:35:29
And why does so much of it lie
abandoned beneath the waves?
00:35:37
Now, marine archaeologist
Jon Henderson is exploring
00:35:41
the secrets
of this sunken city.
00:35:47
Starting with
the huge harbor walls
00:35:49
that once surrounded
the city's port.
00:35:54
HENDERSON: These are built
by the Romans.
00:35:57
They were incredible engineers.
00:35:59
You can still see
the artificial construction
00:36:01
of this very clearly.
00:36:04
You can see the brickwork,
overlapping bricks.
00:36:08
Amazing!
00:36:14
NARRATOR: Beyond the port walls
lie magnificent villas
00:36:17
where Roman emperors
host lavish parties.
00:36:21
HENDERSON: Look at this.
00:36:23
This is a mosaic floor
of one of the bath houses.
00:36:28
Looks like it was
just done yesterday.
00:36:30
It's phenomenal!
00:36:32
Absolutely amazing!
00:36:38
This is called the nymphaeum.
00:36:40
It's actually
an elaborate dining room
00:36:42
for the Emperor Claudius.
00:36:44
You can imagine people
eating food
00:36:46
surrounded by
these water nymphs.
00:36:49
It was built to entertain the
emperor's most honored guests.
00:36:56
Well, one of the things
I'm interested in
00:36:57
is actually the scale
of the site.
00:36:59
Much of the focus has been on
the resort area of Baiae itself.
00:37:03
But on the margins of the site
00:37:04
there are constantly
new areas coming up.
00:37:07
(music)
00:37:11
That's it, slow it down.
00:37:17
There's a lot down there.
00:37:21
NARRATOR: So why did the Romans
lavish so much wealth
00:37:24
on building
a pleasure city here?
00:37:29
HENDERSON:
The Romans came to Baiae
00:37:31
because of the lovely maritime
climate and the thermal springs.
00:37:35
But Baiae was also
a very important port,
00:37:37
it's a natural port,
00:37:38
it's one of the best ports
00:37:40
on the western coast of Italy
at the time.
00:37:43
NARRATOR: Wealth brought
pleasure and excess
00:37:46
to this Las Vegas
of the Roman world.
00:37:50
HENDERSON: There were parties,
there was drinking,
00:37:52
it was a place
to get prostitutes,
00:37:54
and writers at the time referred
to it as 'a harbor of vice'
00:37:57
or 'a vortex of luxury.'
00:38:01
NARRATOR: The famous
Roman philosopher Seneca
00:38:04
is appalled by what he finds.
00:38:07
SENECA: Baiae is a place
to be avoided.
00:38:11
People wandering drunk
along the beach,
00:38:14
the riotous reveling
of sailing parties,
00:38:18
the lakes noisy with singing.
00:38:22
NARRATOR: But time is running
out for this party town.
00:38:28
Gradually many of its most
impressive public buildings
00:38:31
and private villas are
lost beneath the waves.
00:38:38
What happened?
00:38:42
Based on detailed
sonar scanning,
00:38:44
draining away the Mediterranean
begins to reveal the real story
00:38:49
of the rise and fall of Baiae.
00:38:54
It exposes just how much of
the city fell under the waves.
00:38:58
430 acres of streets, shops,
00:39:02
warehouses, and luxury villas.
00:39:08
Draining beyond the town
uncovers the reason--
00:39:13
an extraordinary landscape,
00:39:15
shaped by powerful
underground forces.
00:39:19
The whole town sits inside
the shallow crater
00:39:25
of a giant volcano.
00:39:28
HENDERSON:
You hear about Naples,
00:39:30
people talk about Vesuvius,
they don't seem to realize that
00:39:32
the whole western Bay of Naples
itself is a massive volcano.
00:39:37
We're actually standing
in a volcano now.
00:39:41
NARRATOR: The people of Baiae
may not understand
00:39:44
the unpredictable forces
stirring beneath them.
00:39:49
DOUGAL JERRAM: And we know
we're sat on a volcano.
00:39:52
But it's not
your normal volcano.
00:39:54
It's this much larger and much
more complex volcanic system.
00:40:00
NARRATOR: There's remarkable
evidence of its restless power
00:40:02
three miles away, across the
bay in the Temple of Serapis.
00:40:11
JERRAM: It's really when you
get into the Roman ruins
00:40:13
that you can see
what's going on.
00:40:15
You have to look closely,
though.
00:40:16
If you look up
at the column behind me,
00:40:18
you'll see in the middle part
00:40:19
it's got this strange
texture to it.
00:40:22
Lots and lots of holes in it.
00:40:24
There's even bits of shell
on this.
00:40:26
This is a stone-boring
marine mollusk.
00:40:29
That tells me that this stuff
has been under the sea.
00:40:33
Time enough for those mollusks
00:40:35
to get to grips
with the columns.
00:40:36
But look now,
these columns are in place,
00:40:39
and look where those
marker horizons are now.
00:40:42
That's like a tide
on the side of a bath
00:40:44
telling you where
the sea level was.
00:40:46
So we know that this has been
dropped under the sea,
00:40:50
and it's now risen above.
00:40:52
NARRATOR: Can draining
the waters of the bay
00:40:54
even further explain why
this ancient landscape
00:40:58
is constantly rising
and falling,
00:41:02
and finally show why the Romans
lost their Sin City?
00:41:15
NARRATOR: Baiae,
once a major Roman port,
00:41:20
lies half-submerged amid
a volcanic landscape.
00:41:25
(music)
00:41:29
Jon Henderson has been
exploring the area
00:41:31
beneath the waves,
00:41:34
and he finds a telltale sign
of the power at work here.
00:41:39
HENDERSON: So we've got
all these bubbles
00:41:40
are coming out of the ground,
00:41:43
all this hot air coming up
from the seabed.
00:41:50
You really get a sense here
of the power that's underneath,
00:41:54
waiting to burst out.
00:41:57
Hot water piling out
of the ground under the sea.
00:42:03
I've never seen
anything like this.
00:42:06
NARRATOR: These underwater
vents are superheated
00:42:09
by molten rock
from the volcano below,
00:42:12
evidence that the forces
stirring under Baiae
00:42:15
are highly active.
00:42:18
Locals call the area
Campi Flegri,
00:42:21
the Fields of Fire.
00:42:24
Now, for the first time,
draining the water
00:42:28
from the entire bay exposes
an extraordinary site.
00:42:34
24 separate volcanoes
nesting inside the crater.
00:42:41
It spans an incredible
38 square miles.
00:42:48
But geologists here
have been mapping
00:42:50
deep inside the Earth itself.
00:42:54
Now, draining not only
the Mediterranean,
00:42:57
but looking deep into
the layers of rock below it,
00:43:01
reveals a fantastical sight.
00:43:05
Giant cauldrons of
superheated molten rock,
00:43:08
known as a magma chambers,
00:43:11
that slowly empty and fill
over centuries.
00:43:15
Evidence that this
huge volcanic system
00:43:19
is still very much alive.
00:43:22
HENDERSON: Basically you've got
magma chambers
00:43:24
sitting under the sea, which
operate almost like bellows.
00:43:27
When they fill full of lava,
the ground goes up,
00:43:30
and then when they empty again
the ground goes down,
00:43:32
and this process is
going on constantly.
00:43:35
NARRATOR: It's as if the land
within the Campi Flegri crater
00:43:38
itself is breathing.
00:43:43
SCOTT: You feel like
you're standing
00:43:44
on some kind of giant's chest.
00:43:49
You feel minute compared
to the giant tectonic forces
00:43:54
that are creating
the world around you.
00:43:56
NARRATOR: The damage caused
00:43:57
by these breathing
chambers of magma
00:44:00
coincides with the decline
of the Roman Empire.
00:44:05
As part of the city slides
beneath the Mediterranean,
00:44:08
the population shrinks
and the parties end;
00:44:13
Sin City is no more.
00:44:19
Today, the scientists studying
the landscape here
00:44:23
believe that pressures
in the magma chambers
00:44:25
are increasing once again,
00:44:28
and that could have
catastrophic consequences
00:44:31
for the millions of people
living close by.
00:44:35
JERRAM: We know
it's an active system.
00:44:36
So one of the interesting
problems we have
00:44:38
with something the size
of Campi Flegri is,
00:44:42
is it going to erupt big or
is it going to erupt small?
00:44:46
NARRATOR:
Big could mean very big.
00:44:53
In AD 79,
nearby Vesuvius erupts.
00:44:58
It destroys
the city of Pompeii.
00:45:02
Thousands of people burn to
death or choke on volcanic ash.
00:45:10
But scientists know
the volcanic system
00:45:12
feeding the Fields of Fire
is far larger
00:45:16
and far more powerful
than Vesuvius.
00:45:20
And with so many people
living nearby,
00:45:23
it's vital to keep a close eye
00:45:25
on the breathing giant
beneath them.
00:45:30
JERRAM: It's even more critical
00:45:31
that we monitor
volcanoes like this,
00:45:33
and that's because we're verging
00:45:35
on the side of what we call
a supervolcano.
00:45:38
NARRATOR: Even the smallest
changes in the ground level,
00:45:41
or its temperature, could be
a vital warning sign
00:45:45
that the unstoppable forces of
nature are about to turn ugly.
00:45:52
JERRAM: If we had an eruption
00:45:54
where these multiple craters
evacuated,
00:45:56
it would be devastating.
00:45:59
It would essentially
flatten this area.
00:46:03
NARRATOR: The eruption could be
almost ten times more powerful
00:46:07
than the one at Santorini that
shattered the Minoan world.
00:46:11
(music)
00:46:17
Vast amounts
of volcanic material
00:46:19
would be ejected
into the atmosphere,
00:46:22
blocking out the sunlight.
00:46:27
Global temperatures
would plummet
00:46:29
with devastating consequences.
00:46:36
New scanning technology
reveals remarkable evidence
00:46:40
lying hidden beneath the waters
of the Mediterranean.
00:46:44
The raw forces of nature
00:46:46
still shaping
this volcanic landscape.
00:46:51
Priceless evidence of the trade
that drove the ancient world,
00:46:57
and an epic battle that changed
the course of history.