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1702 (MDCCII)was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1702nd year of the Common Era (CE) and Anno Domini (AD) designations, the 702nd year of the 2nd millennium, the 2nd year of the 18th century, and the 3rd year of the 1700s decade. As of the start of 1702, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923. In the Swedish calendar it was a common year starting on Wednesday, one day ahead of the Julian and ten days behind the Gregorian calendar.
- January 12 – In North America, ships from Fort Maurepas arrive at Twenty-Seven Mile Bluff, to build Fort Louis de la Mobile (future Mobile, Alabama), to become the capital of French Louisiana.
- March 8 (O.S.) – William III of England dies of complications following a fall from his horse on February 20; his sister-in-law, Princess Anne Stuart, becomes Queen Anne of England, Scotland and Ireland. Anne is the mother of 17 children by her husband, Prince George of Denmark and Norway, but none will survive childhood, and she will die without an heir, to enable the Hanoverian Succession. The States General of the Netherlands do not appoint a new stadtholder, and so the Dutch Republic becomes a true republic again.
- March 11 (O.S.) – The first regular English-language national newspaper, The Daily Courant, is published for the first time on Fleet Street, in the City of London; it covers only foreign news.
- May – Warsaw is conquered by Charles XII of Sweden.
- May 14 (N.S.) – War of the Spanish Succession: War is declared on France by the Grand Alliance (Kingdom of England, Dutch Republic and Holy Roman Empire).
- June – Queen Anne's Captain-General, John Churchill, forces the surrender of Kaiserswerth on the Rhine.
- Delaware is designated a separate colony.
беларуская (тарашкевіца): 1702
srpskohrvatski / српскохрватски: 1702