January 18 » Frederick I crowns himself King of Prussia in Königsberg.
March 9 » Safavid troops retreat from Basra, ending a three year occupation.
May 23 » After being convicted of piracy and of murdering William Moore, Captain William Kidd is hanged in London.
July 19 » Representatives of the Iroquois Confederacy sign the Nanfan Treaty, ceding a large territory north of the Ohio River to England.
July 24 » Antoine de la Mothe Cadillac founds the trading post at Fort Pontchartrain, which later becomes the city of Detroit.
September 16 » James Francis Edward Stuart, sometimes called the "Old Pretender", becomes the Jacobite claimant to the thrones of England and Scotland.
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.
Day of death September 1, 1791
The temperature on September 1, 1791 was about 16.0 °C. There was 22 mm of rainWind direction mainly west-southwest. Weather type: betrokken. Source: KNMI
May 3 » The Constitution of May 3 (the first modern constitution in Europe) is proclaimed by the Sejm of Polish–Lithuanian Commonwealth.
August 14 » Slaves from plantations in Saint-Domingue hold a Vodou ceremony led by houngan Dutty Boukman at Bois Caïman, marking the start of the Haitian Revolution.
August 21 » A Vodou ceremony, led by Dutty Boukman, turns into a violent slave rebellion, beginning the Haitian Revolution.
August 26 » John Fitch is granted a United States patent for the steamboat.
September 5 » Olympe de Gouges writes the Declaration of the Rights of Woman and of the Female Citizen.
November 9 » Foundation of the Dublin Society of United Irishmen.
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/I7596.php : accessed December 26, 2025), "Joukjen Feikens (1701-1791)".
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