21 tháng 10
Also known as October 21st, 21st of October, 21 October, Oct 21
ngày
AI overview
October 21 is the 294th day of the year in the Gregorian calendar (or 295th in leap years). It matters primarily as a reference point for marking time and organizing calendars and schedules.
AI-generated from the Wikipedia summary — may contain errors.
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- Commons category
- 21 October
- Commons gallery
- October 21
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