1666 facts for kids

1666 in other calendars
Gregorian calendar	1666; MDCLXVI
Ab urbe condita	2419
Armenian calendar	1115; ԹՎ ՌՃԺԵ
Assyrian calendar	6416
Bahá'í calendar	-178–-177
Bengali calendar	1073
Berber calendar	2616
English Regnal year	17 Cha. 2 – 18 Cha. 2;
Buddhist calendar	2210
Burmese calendar	1028
Byzantine calendar	7174–7175
Chinese calendar	乙巳年月日; (4302/4362-Expression error: Unrecognized punctuation character "[".-Template:Chinese calendar/day/72/41) — to — 丙午年月日; (4303/4363-Expression error: Unrecognized punctuation character "[".-Template:Chinese calendar/day/72/42)
Coptic calendar	1382–1383
Ethiopian calendar	1658–1659
Hebrew calendar	5426–5427
Hindu calendars
- Vikram Samvat	1722–1723
- Shaka Samvat	1588–1589
- Kali Yuga	4767–4768
Holocene calendar	11666
Iranian calendar	1044–1045
Islamic calendar	1076–1077
Japanese calendar	Kanbun 5; (寛文5年)
Korean calendar	3999
Minguo calendar	246 before ROC; 民前246年
Thai solar calendar	2209

Millennium:	2nd millennium
Centuries:	16th century – 17th century – 18th century
Decades:	1630s 1640s 1650s – 1660s – 1670s 1680s 1690s
Years:	1663 1664 1665 – 1666 – 1667 1668 1669

This article is about the year 1666.

1666 (MDCLXVI) was a common year starting on Friday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1666th year of the Common Era (CE) and Anno Domini (AD) designations, the 666th year of the 2nd millennium, the 66th year of the 17th century, and the 7th year of the 1660s decade. As of the start of 1666, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

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