[401-450] [RECOMMENDED]

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

: The Visigoths, led by Alaric , sacked Rome for the first time in 800 years, signaling the empire's vulnerability. [401-450]

: The promulgation of the Theodosian Law Code in 438, which collected all imperial laws since 312. : One of the longest-reigning Roman emperors, Theodosius

: 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 : By 450 AD, the Huns had become a dominant force

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

: 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 :