: 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 [401-450]
: The Visigoths, led by Alaric , sacked Rome for the first time in 800 years, signaling the empire's vulnerability. : By 450 AD, the Huns had become a dominant force