401

401 (CDI) was a common year starting on Tuesday in the Julian calendar.

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

401 in other calendars

Gregorian calendar	401 CDI
Ab urbe condita	1154
Assyrian calendar	5151
Balinese saka calendar	322–323
Bengali calendar	−192
Berber calendar	1351
Buddhist calendar	945
Burmese calendar	−237
Byzantine calendar	5909–5910
Chinese calendar	庚子年 (Metal Rat) 3097 or 3037     — to — 辛丑年 (Metal Ox) 3098 or 3038
Coptic calendar	117–118
Discordian calendar	1567
Ethiopian calendar	393–394
Hebrew calendar	4161–4162
Hindu calendars
- Vikram Samvat	457–458
- Shaka Samvat	322–323
- Kali Yuga	3501–3502
Holocene calendar	10401
Iranian calendar	221 BP – 220 BP
Islamic calendar	228 BH – 227 BH
Javanese calendar	284–285
Julian calendar	401 CDI
Korean calendar	2734
Minguo calendar	1511 before ROC 民前1511年
Nanakshahi calendar	−1067
Seleucid era	712/713 AG
Thai solar calendar	943–944
Tibetan calendar	阳金鼠年 (male Iron-Rat) 527 or 146 or −626     — to — 阴金牛年 (female Iron-Ox) 528 or 147 or −625

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

Deaths

for more information, see Category:401 deaths.