1668

1668 (MDCLXVIII) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1668th year of the Common Era (CE) and Anno Domini (AD) designations, the 668th year of the 2nd millennium, the 68th year of the 17th century, and the 9th year of the 1660s decade. As of the start of 1668, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

Millennium:	2nd millennium
Centuries:	16th century – 17th century – 18th century
Decades:	1630s  1640s  1650s  – 1660s –  1670s  1680s  1690s
Years:	1665 1666 1667 – 1668 – 1669 1670 1671

1668 in other calendars

Gregorian calendar	1668 MDCLXVIII
Ab urbe condita	2421
Armenian calendar	1117 ԹՎ ՌՃԺԷ
Assyrian calendar	6418
Balinese saka calendar	1589–1590
Bengali calendar	1075
Berber calendar	2618
English Regnal year	19 Cha. 2 – 20 Cha. 2
Buddhist calendar	2212
Burmese calendar	1030
Byzantine calendar	7176–7177
Chinese calendar	丁未年 (Fire Goat) 4364 or 4304     — to — 戊申年 (Earth Monkey) 4365 or 4305
Coptic calendar	1384–1385
Discordian calendar	2834
Ethiopian calendar	1660–1661
Hebrew calendar	5428–5429
Hindu calendars
- Vikram Samvat	1724–1725
- Shaka Samvat	1589–1590
- Kali Yuga	4768–4769
Holocene calendar	11668
Igbo calendar	668–669
Iranian calendar	1046–1047
Islamic calendar	1078–1079
Japanese calendar	Kanbun 7 (寛文７年)
Javanese calendar	1590–1591
Julian calendar	Gregorian minus 10 days
Korean calendar	4001
Minguo calendar	244 before ROC 民前244年
Nanakshahi calendar	200
Thai solar calendar	2210–2211
Tibetan calendar	མེ་མོ་ལུག་ལོ་ (female Fire-Sheep) 1794 or 1413 or 641     — to — ས་ཕོ་སྤྲེ་ལོ་ (male Earth-Monkey) 1795 or 1414 or 642

Events

• January – The Triple Alliance of 1668 is formed.
• February 13 Lisbon – Peace Treaty between Afonso VI of Portugal and Carlos II of Spain, by mediation of Charles II of England where it is recognized the legitimity of the Portuguese monarch. Portugal yields Ceuta to Spain.
• The first Treaty of Aix-la-Chapelle ends the War of Devolution.
• Bishop Issac Barrow founds a trust to establish a university on the Isle of Man. (King William's College)
• July 25 – The magnitude 8.5 Shandong earthquake causes 43,000 to 50,000 deaths in Shandong during the Qing Dynasty, making it the largest historical earthquake in Eastern China.
• August 17 – The magnitude 8.0 North Anatolia earthquake causes 8,000 deaths in northern Anatolia, Ottoman Empire, and is the most powerful earthquake recorded in Turkey.
• First performance of Molière's comedy, Tartuffe
• The British East India Company takes over Bombay
• Foundation of the First National Bank of Europe in Stockholm, Sweden "Riskbank"
• Emperor Yohannes I of Ethiopia convenes a church council in Gondar, which decides to expel all Roman Catholics in Ethiopia.

Births

• November 10 - François Couperin, French composer