1721

Millennium:	2nd millennium
Centuries:	17th century – 18th century – 19th century
Decades:	1690s  1700s  1710s  – 1720s –  1730s  1740s  1750s
Years:	1718 1719 1720 – 1721 – 1722 1723 1724

1721 Media

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  November 2: The Russian Empire is created as the Tsar Peter the Great is proclaimed "Tsar of all the Russias". (1858 painting by Stanisław Chlebowski)

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  August 18: The siege of Shamakhi ends in Persia.

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  "Roger Sherman (1721-1793), M.A. (Hon.) 1768"

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  Marguerite Louise d'Orléans

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  Statue of Alexander Selkirk at the site of his original house on Main Street, Lower Largo Fife, Scotland

1721 (MDCCXXI) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1721st year of the Common Era (CE) and Anno Domini (AD) designations, the 721st year of the 2nd millennium, the 21st year of the 18th century, and the 2nd year of the 1720s decade. As of the start of 1721, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

Events

• Pope Innocent XIII becomes pope
• Johann Sebastian Bach composes the Brandenburg Concertos
• April 4 – Robert Walpole becomes the first Prime Minister of the United Kingdom
• September 10 – Treaty of Nystad is signed, bringing an end to the Great Northern War
• November 2 – Peter I is proclaimed Emperor of All the Russias

Births

• April 19 - Roger Sherman, signer of the American Declaration of Independence (d. 1803)

Deaths

• July 18 - Antoine Watteau, French painter (b. 1684)
• September 2 - Kwon Sang-ha, Korean writer
• September 17 - Marguerite Louise d'Orléans, Grand Duchess of Tuscany
• December 13 - Alexander Selkirk, Scottish sailor (original "Robinson Crusoe") (b. 1676)