1669

1669 (MDCLXIX) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1669th year of the Common Era (CE) and Anno Domini (AD) designations, the 669th year of the 2nd millennium, the 69th year of the 17th century, and the 10th and last year of the 1660s decade. As of the start of 1669, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

1669 in other calendars

Gregorian calendar	1669 MDCLXIX
Ab urbe condita	2422
Armenian calendar	1118 ԹՎ ՌՃԺԸ
Assyrian calendar	6419
Balinese saka calendar	1590–1591
Bengali calendar	1076
Berber calendar	2619
English Regnal year	20 Cha. 2 – 21 Cha. 2
Buddhist calendar	2213
Burmese calendar	1031
Byzantine calendar	7177–7178
Chinese calendar	戊申年 (Earth Monkey) 4365 or 4305     — to — 己酉年 (Earth Rooster) 4366 or 4306
Coptic calendar	1385–1386
Discordian calendar	2835
Ethiopian calendar	1661–1662
Hebrew calendar	5429–5430
Hindu calendars
- Vikram Samvat	1725–1726
- Shaka Samvat	1590–1591
- Kali Yuga	4769–4770
Holocene calendar	11669
Igbo calendar	669–670
Iranian calendar	1047–1048
Islamic calendar	1079–1080
Japanese calendar	Kanbun 8 (寛文８年)
Javanese calendar	1591–1592
Julian calendar	Gregorian minus 10 days
Korean calendar	4002
Minguo calendar	243 before ROC 民前243年
Nanakshahi calendar	201
Thai solar calendar	2211–2212
Tibetan calendar	ས་ཕོ་སྤྲེ་ལོ་ (male Earth-Monkey) 1795 or 1414 or 642     — to — ས་མོ་བྱ་ལོ་ (female Earth-Bird) 1796 or 1415 or 643

Events

• March 11 – Mount Etna erupts, destroying the town of Nicolosi and killing 20,000 people.
• July – The Hanseatic League, 400 years after it was formed, holds its last official meeting in Lübeck.

Date unknown

• Phosphorus is discovered by Hennig Brand.
• Antonio Stradivari makes his first violin.

Deaths

• December 9 – Pope Clement IX (b. 1600)