End of Roman Britain
Rome stops defending the province; the Britons are on their own
In 407 the usurper Constantine III took the last troops out of Britain, and in 410, according to Zosimus, Emperor Honorius told the island's cities to look to their own defence. Roman towns and villas fell into decay, and the Anglo-Saxons soon arrived in the east of the island.
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Meanwhile around the world (±25 years)
Middle East
- c. 405 Mesrop Mashtots creates the Armenian alphabet — 5 years earlier
Africa
- c. 397–400 Augustine's Confessions — 13 years earlier
Asia
- c. 427 Founding of Nalanda — 17 years later
Americas
- c. 431 Ilopango eruption — 21 years later
Alive at the time
- Augustine of Hippo (aged 56)
- Attila (aged 4)
- Hypatia (aged 50)