421

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Millennium:1st millennium
Centuries:4th century5th century6th century
Decades:390s  400s  410s  – 420s –  430s  440s  450s
Years:418 419 420421422 423 424
 
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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 leaders – Sovereign states
Birth and death categories
BirthsDeaths
Establishment and disestablishment categories
Establishments – Disestablishments
421 in other calendars
Gregorian calendar421
CDXXI
Ab urbe condita1174
Armenian calendarN/A
Assyrian calendar5171
Bahá'í calendar-1423–-1422
Bengali calendar-172
Berber calendar1371
English Regnal yearN/A
Buddhist calendar965
Burmese calendar-217
Byzantine calendar5929–5930
Chinese calendar庚申年十一月十二日
(3057/3117-11-12)
— to —
辛酉年十一月廿二日
(3058/3118-11-22)
Coptic calendar137–138
Ethiopian calendar413–414
Hebrew calendar4181–4182
Hindu calendars
 - Vikram Samvat477–478
 - Shaka Samvat343–344
 - Kali Yuga3522–3523
Holocene calendar10421
Iranian calendar201 BP – 200 BP
Islamic calendar207 BH – 206 BH
Japanese calendar
Julian calendar421    CDXXI
Korean calendar2754
Minguo calendar1491 before ROC
民前1491年
Thai solar calendar964

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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References