The era between 401 and 450 AD was a transformative period marked by political instability and the reshaping of world maps.
: One of the longest-reigning Roman emperors, Theodosius II ruled from 402 until his death in 450. He is most famous for: [401-450]
: Roman troops officially withdrew from Britain, leaving the region to be settled by Anglo-Saxons and leading to a period of economic and cultural decline. The era between 401 and 450 AD was
: The massive fortification of Constantinople that protected the city for over a millennium. [401-450]
: The Vandals captured Carthage in 439, establishing it as their capital and further weakening Roman naval control in the Mediterranean.