421

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This article is about the year 421. For the number, see 421 (number).
Millennium: 1st millennium
Centuries: 4th century5th century6th century
Decades: 390s  400s  410s  – 420s –  430s  440s  450s
Years: 418 419 420421422 423 424
421 by topic
Politics
State leadersSovereign states
Birth and death categories
BirthsDeaths
Establishment and disestablishment categories
EstablishmentsDisestablishments
421 in other calendars
Gregorian calendar 421
CDXXI
Ab urbe condita 1174
Armenian calendar N/A
Assyrian calendar 5171
Bahá'í calendar −1423 – −1422
Bengali calendar −172
Berber calendar 1371
English Regnal year N/A
Buddhist calendar 965
Burmese calendar −217
Byzantine calendar 5929–5930
Chinese calendar 庚申(Metal Monkey)
3117 or 3057
    — to —
辛酉年 (Metal Rooster)
3118 or 3058
Coptic calendar 137–138
Discordian calendar 1587
Ethiopian calendar 413–414
Hebrew calendar 4181–4182
Hindu calendars
 - Vikram Samvat 477–478
 - Shaka Samvat 343–344
 - Kali Yuga 3522–3523
Holocene calendar 10421
Igbo calendar −579 – −578
Iranian calendar 201 BP – 200 BP
Islamic calendar 207 BH – 206 BH
Japanese calendar N/A
Juche calendar N/A
Julian calendar 421
CDXXI
Korean calendar 2754
Minguo calendar 1491 before ROC
民前1491年
Thai solar calendar 964

Year 421 (CDXXI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Agricola and Eustathius (or, less frequently, year 1174 Ab urbe condita). The denomination 421 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

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Europe[edit]

Persia[edit]


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