Topsham, Devon line to Exmouth. In 2011 was the 150th anniversary of the railway coming to Topsham, on what is now called the Exeter–Exmouth Avocet Line. The native Celtic settlement of Topsham became the port of the Roman city of Isca Dumnoniorum (Exeter) in the first century AD, and continued to serve it until the Roman occupation of southern Britain ceased about the year 400. In the 7th century the Saxon rule in East Devon saw the settlement grow into a considerable village. St Margaret's Anglican Church in Topsham, dates back to the 10th century. Although reconstructed several times, it remains in
England–Wales border Insular Celtic languages, and were regarded as Britons. The clear geographical divide between the mountainous western areas of southern Britain and the generally lower-lying areas to the east was reflected in the pattern of Roman occupation. The main Roman military bases for the control of what became Wales were beyond the mountains, at "Deva" (Chester), "Viroconium" (Wroxeter, near Shrewsbury), and "Isca Augusta" (Caerleon, near Newport), all located close to the later national border. When the Roman garrison left around 410, the various parts of Britain were left to govern and defend themselves. The western area, later Wales, had become largely