April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
July 1 » Canada and Bermuda are linked by telegraph cable.
July 26 » In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.
July 27 » Vincent van Gogh shoots himself and dies two days later.
November 4 » City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
Day of marriage August 27, 1920
The temperature on August 27, 1920 was between 7.7 °C and 18.8 °C and averaged 13.4 °C. There was 6.9 hours of sunshine (49%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 29 » Czechoslovak National Assembly adopts the Constitution.
March 13 » The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
August 26 » The 19th amendment to United States Constitution takes effect, giving women the right to vote.
October 10 » The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.
Day of death December 7, 1958
The temperature on December 7, 1958 was between -3.2 °C and 5.1 °C and averaged 1.6 °C. There was 0.1 mm of rain. There was 0.1 hours of sunshine (1%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
February 5 » A hydrogen bomb known as the Tybee Bomb is lost by the US Air Force off the coast of Savannah, Georgia, never to be recovered.
February 22 » Egypt and Syria join to form the United Arab Republic.
March 1 » Samuel Alphonsus Stritch is appointed Pro-Prefect of the Propagation of Faith and thus becomes the first U.S. member of the Roman Curia.
March 31 » In the Canadian federal election, the Progressive Conservatives, led by John Diefenbaker, win the largest percentage of seats in Canadian history, with 208 seats of 265.
October 28 » John XXIII is elected Pope.
December 30 » The Guatemalan Air Force sinks several Mexican fishing boats alleged to have breached maritime borders, killing three and sparking international tension.
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/I109141.php : accessed October 23, 2026), "Johannes Pietersma (1890-1958)".
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