: The Visigoths, led by Alaric , sacked Rome for the first time in 800 years, signaling the empire's vulnerability.
: One of the longest-reigning Roman emperors, Theodosius II ruled from 402 until his death in 450. He is most famous for:
: 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.
: 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 Visigoths, led by Alaric , sacked
: By 450 AD, the Huns had become a dominant force. A famous incident involved Honoria, sister of Emperor Valentinian III, sending an engagement ring to Attila the Hun, effectively inviting him to invade the West. Modern Technical & Regulatory Contexts
In modern usage, "401–450" frequently appears in specific administrative and regulatory frameworks. 401 Area Code - Location map, time zone, and phone lookup : The promulgation of the Theodosian Law Code
: The Vandals captured Carthage in 439, establishing it as their capital and further weakening Roman naval control in the Mediterranean.