Latest / The Story of Italy: Rome, Renaissance, and the Birth of Modern Europe — Fexingo History / The Fosse Way: Rome's Western Frontier and the Conquest of Britain
Transcript
- Lucas: So we've talked a lot about Rome's roads — the Appian Way, the Via Flaminia, the whole network that tied the empire together. But there's one road in particular that I think tells a really different story, because it wasn't just about connecting cities — it was a frontier line. Luna: You mean the Fosse Way? Lucas: Exactly. The Fosse Way runs diagonally across England, from Exeter in the southwest all the way up to Lincoln in the northeast. About 230 miles. And for a crucial period in the early decades of Roman Britain, that road marked the effective western boundary of Roman control. Lucas: When the Romans invaded in 43 AD under Claudius, they didn't just steamroll the whole island. They pushed forward, established a frontier, and then consolidated. The Fosse Way became that first line — a ditch and a bank with a road on top, linking a chain of forts. Luna: So it was like a Roman version of the Maginot Line, but more successful? Lucas: In a sense, yes — though it wasn't a continuous wall. It was more of a military zone. The road itself was built by the legions, especially the Legio II Augusta, which was based at Exeter — or Isca Dumnoniorum, to give it its Roman name. And at the other end, Lincoln — Lindum Colonia — became a colony for retired soldiers. Lucas: What's fascinating is that the Fosse Way wasn't just a defensive line. It was also a highway for moving troops and supplies deeper into hostile territory. Once the frontier moved north and west — toward Wales and the Pennines — the Fosse Way became a supply route, linking the new forts to the old rear areas. Luna: That makes sense. So it evolved from a frontier to a backbone. Lucas: Exactly. And the name itself is intriguing. 'Fosse' comes from the Latin 'fossa', meaning ditch. The road was built alongside a defensive ditch, with the earth piled up to form a bank. In places, you can still see that profile today — a raised causeway with a ditch on one or both sides. Lucas: The archaeologist Sir Ian Richmond argued that the Fosse Way was deliberately aligned to create a strategic boundary, cutting Britain into a Roman-controlled lowland zone and a highland zone that remained resistant. That divide lasted for centuries. Luna: Was it always a hard border, or did it shift? Lucas: It shifted. Within a generation, the frontier pushed west into Wales and north toward the Tyne-Solway line — where Hadrian's Wall would later be built. But the Fosse Way remained a vital artery. Towns like Leicester — Ratae Corieltauvorum — and Cirencester — Corinium Dobunnorum — grew up along it. Lucas: And here's something that always gets me: the road is still there. Modern roads follow its course for long stretches. You can drive the A46, the A37, the A429 — they all shadow the Roman line. That's a 1,900-year-old planning decision still shaping how people move. Luna: That's incredible. A road built by legionaries, and we're still using it. Lucas: Absolutely. And you know, it's funny — when you think about the scale of what the Romans did in Britain, it's easy to focus on Hadrian's Wall or the great cities like Londinium. But the Fosse Way is this quiet monument to the pragmatism of Roman military engineering. Lucas: It's also a reminder that conquest isn't just about battles. It's about logistics, about control of movement, about drawing lines on the landscape that become permanent. The Fosse Way is one of those lines. Luna: And it's still there, under our wheels. Lucas: I think that's part of why I love this history. You don't have to imagine it — you can go and stand on it. And if you've been travelling with us through these conversations about Europe and the ancient world, maybe you've felt that connection too. We try to make these shows because we want to share that sense of discovery. Lucas: And honestly, a couple of dollars a month is genuinely what keeps these going — buy me a coffee dot com slash fexingo, if you've gotten something out of them. It helps us keep doing deep dives like this, without ads or any of that. Luna: Yeah, it really does make a difference. Every little bit. Lucas: Anyway — back to the Fosse Way. So the road wasn't just a military line. It also became a cultural boundary. The area west of the Fosse, in the southwest, remained less Romanised. The Dumnonii tribe in what's now Cornwall and Devon held onto their own traditions longer. Luna: So the road marked not just a military frontier, but a cultural one too. Lucas: Exactly. And there's evidence that the Romans deliberately used the road to project power. Along the Fosse, they built milestones, way stations, and in some places, triumphal arches. It was a statement: 'This is where our world ends, and beyond is something else.' Lucas: One of the most striking things is how straight it is. Roman surveyors used a tool called a groma to lay out straight lines over long distances. The Fosse Way has sections that run dead straight for miles, even across rolling countryside. That's no accident. Luna: It must have been a huge engineering project. How long did it take to build? Lucas: We don't know exactly, but the core sections were probably built in the first decade or two after the invasion, so by around 60 AD. It was built by legionary labour — each legion had its own engineering corps. They would have cleared the route, dug the ditch, laid a gravel base, and then surfaced it with stone or compacted gravel. Lucas: And it wasn't just a road. At intervals, there were forts — like at Ilchester, Bath, and Leicester. Those forts became towns. So the road literally planted Roman urbanism into the British landscape. Luna: So the Fosse Way was like a spine for Roman Britain. Lucas: Exactly. And it's a spine that still holds. If you look at a map of England today, the Fosse Way is still a major axis. It's not as famous as Hadrian's Wall, but in many ways, it's more fundamental to understanding how Rome took and held Britain. Lucas: There's also a darker side. The road was used to suppress resistance. After Boudica's revolt in 60-61 AD, the Romans used the Fosse Way to rush troops from the southwest to the Midlands. And later, during the campaigns against the Silures in Wales, the road supplied the legions. Luna: So it was a tool of conquest, not just a line. Lucas: Precisely. And that's the double-edged nature of Roman infrastructure. It brought trade, law, and urban life — but it also brought military force and cultural erasure. The Fosse Way is a monument to both. Lucas: There's a lovely detail from the historian Tacitus: he describes how the Roman general Agricola, in the 70s AD, used roads like the Fosse to 'soften' the Britons — building towns, temples, and forums along them, to encourage the native elite to adopt Roman ways. Luna: So the road was also a tool of Romanisation. Lucas: Exactly. And that strategy worked. Within a few generations, the British aristocracy was sending their sons to Roman schools, speaking Latin, and living in Roman-style villas. The Fosse Way was the highway that carried that transformation. Lucas: It's a reminder that empires aren't just built on battles. They're built on roads, on lines in the dirt, on the everyday decisions of surveyors and legionaries. And sometimes, those lines outlast the empire itself. Luna: I'll never look at the A46 the same way again. Lucas: That's the idea. Next time you're driving across England, just think — you might be following the line that once divided Roman from Briton, and that still shapes the land under your wheels.