[401-450] May 2026

: The massive fortification of Constantinople that protected the city for over a millennium.

: 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. [401-450]

: He ordered the building of the Church of Saint Nicholas in Myra, preserving one of the earliest records of the historical figure. The Decline of Rome : : The massive fortification of Constantinople that protected

: One of the longest-reigning Roman emperors, Theodosius II ruled from 402 until his death in 450. He is most famous for: The Decline of Rome : : One of

: The promulgation of the Theodosian Law Code in 438, which collected all imperial laws since 312.

The era between 401 and 450 AD was a transformative period marked by political instability and the reshaping of world maps.