[401-450] May 2026

: 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 :

In modern usage, "401–450" frequently appears in specific administrative and regulatory frameworks. 401 Area Code - Location map, time zone, and phone lookup [401-450]

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

: The massive fortification of Constantinople that protected the city for over a millennium. [401-450]

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