Year 1231
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Days count
365
First day
Last day
Year 1231 started on Wednesday, January 1 and ended after 365 days on Wednesday, December 31.
Important events
Emperor of Japan
date of birth
date of death
November 6, 1231
35 years 10 months 3 days
French noble
date of birth
date of death
September 3, 1231
35 years
German noblewoman, Countess consort of Guelders
date of birth
date of death
December 7, 1231
58 years
Russian nobleman
date of birth
date of death
September 16, 1277
46 years 1 month 23 days
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