1690

1690 in other calendars
Gregorian calendar	1690; MDCXC
Ab urbe condita	2443
Armenian calendar	1139; ԹՎ ՌՃԼԹ
Assyrian calendar	6440
Balinese saka calendar	1611–1612
Bengali calendar	1097
Berber calendar	2640
English Regnal year	2 Will. & Mar. – 3 Will. & Mar.
Buddhist calendar	2234
Burmese calendar	1052
Byzantine calendar	7198–7199
Chinese calendar	己巳年 (Earth Snake); 4386 or 4326; — to —; 庚午年 (Metal Horse); 4387 or 4327
Coptic calendar	1406–1407
Discordian calendar	2856
Ethiopian calendar	1682–1683
Hebrew calendar	5450–5451
Hindu calendars
- Vikram Samvat	1746–1747
- Shaka Samvat	1611–1612
- Kali Yuga	4790–4791
Holocene calendar	11690
Igbo calendar	690–691
Iranian calendar	1068–1069
Islamic calendar	1101–1102
Japanese calendar	Genroku 3; (元禄３年)
Javanese calendar	1613–1614
Julian calendar	Gregorian minus 10 days
Korean calendar	4023
Minguo calendar	222 before ROC; 民前222年
Nanakshahi calendar	222
Thai solar calendar	2232–2233
Tibetan calendar	阴土蛇年; (female Earth-Snake); 1816 or 1435 or 663; — to —; 阳金马年; (male Iron-Horse); 1817 or 1436 or 664

Millennium:	2nd millennium
Centuries:	16th century – 17th century – 18th century
Decades:	1660s 1670s 1680s – 1690s – 1700s 1710s 1720s
Years:	1687 1688 1689 – 1690 – 1691 1692 1693

1690 (MDCXC) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Wednesday of the Julian calendar, the 1690th year of the Common Era (CE) and Anno Domini (AD) designations, the 690th year of the 2nd millennium, the 90th year of the 17th century, and the 1st year of the 1690s decade. As of the start of 1690, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

Events

Earliest recorded sighting of the planet Uranus, by John Flamsteed, who mistakenly catalogues it as the star 34 Tauri
Giovanni Domenico Cassini observes differential rotation within Jupiter's atmosphere.
The French invade the small town of Teignmouth in Southwest England, in their last attack on England.