Millennium:2nd millennium
  • 1640s
  • 1650s
  • 1660s
  • 1670s
  • 1680s
  • 1665
  • 1666
  • 1667
  • 1668
  • 1669
  • 1670
  • 1671
1668 in various calendars
Gregorian calendar1668
Ab urbe condita2421
Armenian calendar1117
Assyrian calendar6418
Balinese saka calendar1589–1590
Bengali calendar1075
Berber calendar2618
English Regnal year19 Cha. 2 – 20 Cha. 2
Buddhist calendar2212
Burmese calendar1030
Byzantine calendar7176–7177
Chinese calendar丁未年 (Fire Goat)
4364 or 4304
    — to —
戊申年 (Earth Monkey)
4365 or 4305
Coptic calendar1384–1385
Discordian calendar2834
Ethiopian calendar1660–1661
Hebrew calendar5428–5429
Hindu calendars
 - Vikram Samvat1724–1725
 - Shaka Samvat1589–1590
 - Kali Yuga4768–4769
Holocene calendar11668
Igbo calendar668–669
Iranian calendar1046–1047
Islamic calendar1078–1079
Japanese calendarKanbun 7
Javanese calendar1590–1591
Julian calendarGregorian minus 10 days
Korean calendar4001
Minguo calendar244 before ROC
Nanakshahi calendar200
Thai solar calendar2210–2211
Tibetan calendar阴火羊年
(female Fire-Goat)
1794 or 1413 or 641
    — to —
(male Earth-Monkey)
1795 or 1414 or 642
May 2: Treaty of Aix-la-Chapelle

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.



  • January 23 – The Triple Alliance of 1668 is formed between England, Sweden and the United Provinces of the Netherlands.
  • February 13 – In Lisbon, a peace treaty is established between Afonso VI of Portugal and Carlos II of Spain, by mediation of Charles II of England, in which the legitimacy of the Portuguese monarch is recognized. Portugal yields Ceuta to Spain.
  • March 8 – In the Cretan War, the navy of the Republic of Venice defeats an Ottoman Empire naval force of 12 ships and 2,000 galleys that had attempted to seize a small Venetian galley near the port of Agia Pelagia.
  • March 23 – The Bawdy House Riots of 1668 take place in London when a group of English Dissenters begins attacking brothels, initially as a protest against the harsh enforcement of laws against private worshipers and the lack of enforcement of laws against prostitution. Over a period of three days, rioters who join in the violence destroy brothels in the London districts of Poplar, Moorfields, East Smithfield, St Leonard's, Shoreditch, St Andrew's and Holborn.
  • March 27 – King Charles II of England signs an agreement with representatives of the English East India Company to lease the Indian city of Bombay (now Mumbai) to the company for a rent of 10 pounds sterling per year, with transfer taking effect on September 21.


  • April 21 – The Henry Brouncker is expelled from the English House of Commons for treason during the 1665 Battle of Lowestoft during the Second Anglo-Dutch War.
  • April 22Tenzin Dalai Khan is proclaimed as the new Protector King of Tibet by the 5th Dalai Lama, following the death of Tenzin's father, Dayan Khan.
  • April 24The Treaty of Breda, signed in 1667 and ending the Second Anglo-Dutch War, goes into effect worldwide.
  • April 25 – The Swedish Empire signs a treaty with England and the Dutch Republic to join the Triple Alliance.
  • May 2 – The first Treaty of Aix-la-Chapelle ends the War of Devolution.
  • May 18Charles Sedley's comedy The Mulberry-Garden premieres at the Theatre Royal in London.
  • June 4Tangier, a city in Morocco that had come under control of the English colonial empire in 1661, is elevated by the English crown to the status of "free city".
  • June 12John Dryden's play An Evening's Love, or The Mock Astrologer premieres at the Theatre Royal in London in a performance by the King's Company players for King Charles and Queen Catherine.
  • June 16 – A group of Spanish Jesuit missionaries become the first European settlers to arrive at the island of Guam, founding a mission to convert the Chamorro people of the Mariana Islands to Christianity.
  • June 18Petro Doroshenko is proclaimed by the Russian Empire as the hetman of all of Ukraine, after having previously been granted leadership of the western half. Ivan Briukhovetsky, who had ruled the eastern half and then led an uprising, is executed on the same day.


October –December

  • October 5 (September 25 O.S.) – The English blockade of the Moroccan port of Salé begins as HMS Garland and HMS Francis retaliate for raids from the port by the Barbary pirates. The blockade lasts for 10 days.
  • October 7 – French Jesuit missionary Jean Pierron arrives at the Mohawk Nation city of Tionondogen (near modern-day Palatine, New York, U.S.) to replace Jacques Frémin in attempting to convert members of the Iroquois tribe to Christianity.
  • October 31 – The English ship HMS Providence is wrecked at Tangier on the North African coast.
  • November 8Iliaș Alexandru steps down as the voivode or elected ruler of Moldavia (now part of Romania and the Republic of Moldova) and is replaced by his predecessor, Gheorghe Duca.
  • December 6 – The Order of the Jesuati, founded in 1360 by Giovanni Colombini, is abolished by Pope Clement IX.
  • December 16 – In China, the 1661 edict of the "Great Clearance", the forcible evacuation of the coastal areas of Guangdong, Fujian, Zhejiang, Jiangnan, and Shandong in order to fight a rebellion, is rescinded by the Emperor Kangxi after lobbying by Zhou Youde, the Viceroy of Liangguang.
  • December 28Fritz Cronman arrives in Moscow as the Swedish Empire's ambassador to the Russian Empire, accompanied by a staff of 35 people.

Date unknown


Herman Boerhaave



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  3. ^ Jianshe Lei; Dapeng Zhao; Xiwei Xu; Mofei Du; Qi Mi; Mingwen Lu (2020). "P-wave upper-mantle tomography of the Tanlu fault zone in eastern China". Physics of the Earth and Planetary Interiors. 299 (106402): 106402. Bibcode:2020PEPI..29906402L. doi:10.1016/j.pepi.2019.106402.
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  6. ^ Hall, Rupert (April 11, 1996). Isaac Newton: adventurer in thought. p. 67. ISBN 9780521566698.
  7. ^ Almut Spalding; Almut Marianne Grützner Spalding (2005). Elise Reimarus (1735-1805). Königshausen & Neumann. p. 518. ISBN 978-3-8260-2813-7.
  8. ^ Gerrit Arie Lindeboom (1968). Herman Boerhaave: The Man and His Work. Methuen. p. 4. ISBN 978-0-416-10880-4.
  9. ^ Rudolf Steiner (1975). Between Death and Rebirth: Ten Lectures Given in Berlin Between 5th November, 1912 and 1st April, 1913. Rudolf Steiner Press. p. 69. ISBN 978-0-85440-287-8.
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  11. ^ Kang-i Sun Chang; Haun Saussy; Charles Yim-tze Kwong (1999). Women Writers of Traditional China: An Anthology of Poetry and Criticism. Stanford University Press. p. 284. ISBN 978-0-8047-3231-4.

Media files used on this page

Portrait of Giovan Battista - or Giambattista - Vico (1668-1744), italian philosopher, historian and jurist. Oil on canvas.
Herman Boerhaave by J Champan.jpg
Herman Boerhaave, Dutch botanist, humanist and physician
Map Peace of Aix la Chapelle (English).png
Author/Creator: Qui1che based on image by Memnon335bc, Licence: CC BY-SA 3.0
Map showing French gains following the Treaty of Aix-la-Chapelle (1668)