401

401 (CDI) was a common year starting on Tuesday of the Julian calendar, the 401st year of the Common Era (CE) and Anno Domini (AD) designations, the 401st year of the 1st millennium, the 1st year of the 5th century, and the 2nd year of the 400s decade. As of the start of 401, the Gregorian calendar was 1 day ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	1st millennium
Centuries:	4th century – 5th century – 6th century
Decades:	370s  380s  390s  – 400s –  410s  420s  430s
Years:	398 399 400 – 401 – 402 403 404

Events

• Pope Innocent I succeeds Pope Anastasius I.
• The Vandals start their westward trek from Dacia and Hungary (or 400).
• The Visigoths begin to attack the northernmost reaches of Italy, causing destruction in the countryside.
• Kumarajiva arrives in Changan.
• Western Roman Empire general Stilicho leads an extensive campaign against the Vandals in Rhaetia.
• Synod of Turin

401 Media

• 

  Alaric I, king of the Visigoths

Deaths

for more information, see Category:401 deaths.