one of the roads that took thousands of Romans

in and out of their capital city every day.

Young and old, rich and poor, clean and dirty.

And it's where I want to start,

asking a question that really interests me.

Who were the ancient Romans?

Outside the city, it was lined with thousands and thousands of tombs,

so before you got into the city of Rome, you'd already met the Romans.

Dead ones, that is.

And the lives of many of them began or ended a long way from Rome.

This is just a tiny fragment of someone's tomb.

Someone called Eschinus.

"Occisus est in Lusitania".

He was murdered in Spain.

This lady's Usia Prima,

a priestess of the Egyptian goddess Isis,

and there's her little sacred rattle.

She's almost looking at you.

I feel like saying, "Pleased to meet you, Prima."

They come from every walk of life and every part of the Empire,

and a lot of them had once been slaves.

These aren't the kind of guys we usually think of

when we think of Romans.

These Romans all lived at the centre of a vast Empire

that stretched from Spain to Syria,

and which dominated the Western world for over 700 years.

Like it or not, ancient Rome is still all around us,

in our roads, laws and architecture.

We keep on recreating it in film and fiction,

and every year, thousands of us trek here

to see its monuments up close,

and to imagine the emperors and the armies,

the gladiators, and let's be honest, the gore.

But hidden all over the modern city,

in its walls, behind the facades,

even under its streets,

is something much harder to find but just as captivating -

the forgotten voices of the ordinary people.

They're still there, if you know where to look.

Calidius Eroticus means "Mr Hot Sex".

This is a Roman menage a trois.

This wasn't just a mugging.

This was mass murder.

The Romans didn't just carve their names and dates on their tombstones.

Keen never to be forgotten,

they left their thoughts,

their achievements, even entire life stories chiselled into stone.

It's a unique record of real Roman lives.

I've spent most of my life with the ancient Romans,

and not just the big guys - the emperors, the politicians,

the generals, the posh ones.

The people I've most enjoyed getting to know are the ordinary ones,

who had their own part to play in the story

of this extraordinary city.

And what gets to me every time

is that we can still have a conversation with them -

even 2,000 years later.

In this series, I'm going to get their voices speaking again,

to piece together a very different story of life in ancient Rome.

I'll step behind the doors of their homes to meet

flesh and blood Roman families whose lives and possessions

can reflect our own in surprising ways.

This is something a bit special.

She's not just Barbie, she's Empress Barbie.

I'll go down into the streets, where the dirt, crime,

sex and humour in everyday Roman life shows us

what it was like to live in an ancient city of a million people.

"Baths, wine and sex," he said, "ruin your body."

True. But they're what makes life really worth living.

But I'll start by telling the real story of Imperial Rome,

looking beyond the violence and spectacle

to find a global city which reached for talent and treasure

from the far ends of the earth -

a place where everything and everyone was from somewhere else.

These are the Romans I'm interested in.

Welcome to my Rome.

When you arrived in Rome at its imperial height 2,000 years ago,

you found yourself in a new kind of city.

Rome had once been a small city-state,

but in conquest after conquest,

it became capital of a vast Empire,

a place in which, for the first time in history,

a million people from three continents managed to live together.

One thing we know about Rome is it wasn't just a city,

it was an Empire,

and for us, that means marauding armies,

conquering generals and bloodthirsty emperors.

We tend not to think about the ordinary people

who lived here at the very heart of it all.

For them, the Empire brought them into contact with a whole world,

from Scotland to Afghanistan,

and it made this city a more cosmopolitan place

than anywhere had ever been before or would be again

for hundreds of years.

And we're always asking, "What did the Romans do for us?"

I think we should be asking,

"What did the Empire do to the Romans?

"And who were those Romans, anyway?"

Around the city, there's more evidence than you'd think

for the impact that Roman conquest had

on the lives of ordinary people here.

All it requires is that we look from a slightly different angle.

One of the most famous monuments in the forum

celebrates the moment when one conquering army came home.

In 71 AD, the city got a day off

for the triumphal return of the emperor Vespasian and his son Titus,

who had crushed a rebellion in Judea.

We've got here the victorious general, Titus,

driving through the streets of Rome in his chariot

to celebrate his victory...

..and on the other side,

we've got the booty that he's brought home with him.

Titus had devastatingly conquered the Jews,

and here we can see the loot that he has got from the Jewish temple.

It's a grand display,

but what I want to do is

to try and undercut the pomposity of it a bit,

and to ask what was it like for the people,

the ordinary Romans who showed up to watch this,

left their apartments and came to see the spectacle?

A triumph like this would have been the first sight the Roman people had

of all the things the armies brought back from their distant victories.

The rich spoils, the maps of the conquered territory,

the models of the fighting,

even the trees that they'd uprooted and brought back to Rome.

How did people react?

Some must have gasped, others would have jeered the captives.

Or maybe their minds were on other things.

One Roman poet recommends the triumphal procession

as a place to pick up a girl.

How would you do it?

Well, he says, watch the stuff go past, nudge up to her and say,

"Ooh. I think that's the Euphrates there,

"and that's the Tigris over there."

You don't have to know, he says, you just have to sound confident.

And then you'll make your own conquest!

It's a good joke.

But it also hints at the way Roman lives could be changed

by the spoils coming back from the Empire.

This girl can't have been the only person who found all this

pretty strange, but also exciting.

So what did the Roman armies bring back from the Empire?

The import that made the biggest impact

is one we don't think about often enough - human beings.

These are forgotten people, but if we take the time to listen,

we can still hear the voices of some of the millions

who followed the Roman armies into the city

for all sorts of different reasons.

"This is for my brother, Habibi Annu from Palmyra.

"I'm Germanus, Regulus' mule driver."

"This is for Diocles, champion chariot racer from Spain."

Here we've got a young slave girl, age 17,

Phryne, the slave of Tertulla.

"Africana". She came from Africa.

This one is put up by a soldier for his wife Carnuntilla,

born near Vienna in ancient Pannonia.

What's weird is that Carnuntilla isn't really a real name.

It comes from the name of a town in Pannonia, Carnuntum.

It means, sort of, "my babe from Carnuntum".

So my guess is,

he perhaps bought this girl as a slave,

he freed her, he brought her back to Rome, he married her.

But sadly, his babe from Carnuntum died when she was just 19.

Poignant stories like this are everywhere in the city.

They're reminders of the different ways

real lives could begin abroad and end in Rome.

But there's more to it than that.

These people weren't just brought in to serve the Romans.

They were becoming Romans.

One of the tombs on the Appian Way