February 3 » The colony of Massachusetts issues the first paper money in the Americas.
February 15 » Constantin Cantemir, Prince of Moldavia, and the Holy Roman Empire sign a secret treaty in Sibiu, stipulating that Moldavia would support the actions led by the House of Habsburg against the Ottoman Empire.
June 14 » King William III of England (William of Orange) lands in Ireland to confront the former King James II.
July 1 » Glorious Revolution: Battle of the Boyne in Ireland (as reckoned under the Julian calendar).
August 24 » Job Charnock of the East India Company establishes a factory in Calcutta, an event formerly considered the founding of the city (in 2003 the Calcutta High Court ruled that the city's foundation date is unknown).
September 25 » Publick Occurrences Both Forreign and Domestick, the first newspaper to appear in the Americas, is published for the first and only time.
Day of marriage April 13, 1721
The temperature on April 13, 1721 was about 13.0 °C. Source: KNMI
January 6 » The Committee of Inquiry on the South Sea Bubble publishes its findings, revealing details of fraud among company directors and corrupt politicians.
March 24 » Johann Sebastian Bach dedicated six concertos to Margrave Christian Ludwig of Brandenburg-Schwedt, now commonly called the Brandenburg Concertos, BWV 1046-1051.
April 4 » Sir Robert Walpole becomes the first British prime minister.
April 26 » A massive earthquake devastates the Iranian city of Tabriz.
August 18 » The city of Shamakhi in Safavid Shirvan is sacked.
October 22 » Russian Empire is proclaimed by Tsar Peter I after the Swedish defeat in the Great Northern War.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I6029.php : accessed December 26, 2025), "Geertruida Petrus Couperus (-> 1735)".
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