1721

1721 in various calendars
Gregorian calendar	1721 ; MDCCXXI
Ab urbe condita	2474
Armenian calendar	1170 ; ?? ???
Assyrian calendar	6471
Balinese saka calendar	1642?1643
Bengali calendar	1128
Berber calendar	2671
British Regnal year	7 Geo. 1 ? 8 Geo. 1
Buddhist calendar	2265
Burmese calendar	1083
Byzantine calendar	7229?7230
Chinese calendar	庚子年 (Metal Rat ) ; 4417 or 4357 ; ? to ? ; 辛丑年 (Metal Ox ) ; 4418 or 4358
Coptic calendar	1437?1438
Discordian calendar	2887
Ethiopian calendar	1713?1714
Hebrew calendar	5481?5482
Hindu calendars
- Vikram Samvat	1777?1778
- Shaka Samvat	1642?1643
- Kali Yuga	4821?4822
Holocene calendar	11721
Igbo calendar	721?722
Iranian calendar	1099?1100
Islamic calendar	1133?1134
Japanese calendar	Ky?h? 6 ; (享保６年)
Javanese calendar	1645?1646
Julian calendar	Gregorian minus 11 days
Korean calendar	4054
Minguo calendar	191 before ROC ; 民前191年
Nanakshahi calendar	253
Thai solar calendar	2263?2264
Tibetan calendar	?金鼠年 ; (male Iron- Rat ) ; 1847 or 1466 or 694 ; ? to ? ; ?金牛年 ; (female Iron- Ox ) ; 1848 or 1467 or 695