February 1 » Fountains Valley, Pretoria, the oldest nature reserve in Africa, is proclaimed by President Paul Kruger.
February 24 » Revolution breaks out in Baire, a town near Santiago de Cuba, beginning the Cuban War of Independence, that ends with the Spanish–American War in 1898.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
June 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
October 22 » In Paris an express train derails after overrunning the buffer stop, crossing almost 30 metres (100ft) of concourse before crashing through a wall and falling 10 metres (33ft) to the road below.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of marriage May 12, 1921
The temperature on May 12, 1921 was between 9.2 °C and 21.1 °C and averaged 15.5 °C. There was 9.1 hours of sunshine (59%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
January 20 » The British K-class submarine HMS K5 sinks in the English Channel; all 56 on board die.
February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
October 21 » President Warren G. Harding delivers the first speech by a sitting U.S. President against lynching in the deep South.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of death March 5, 1963
The temperature on March 5, 1963 was between 0.2 °C and 8.5 °C and averaged 4.6 °C. There was 4.3 hours of sunshine (39%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 26 » In Libya, amendments to the constitution transform Libya (United Kingdom of Libya) into one national unity (Kingdom of Libya) and allows for female participation in elections.
June 26 » Cold War: U.S. President John F. Kennedy gave his "Ich bin ein Berliner" speech, underlining the support of the United States for democratic West Germany shortly after Soviet-supported East Germany erected the Berlin Wall.
July 1 » ZIP codes are introduced for United States mail.
August 15 » President Fulbert Youlou is overthrown in the Republic of the Congo, after a three-day uprising in the capital.
September 25 » Lord Denning releases the UK government's official report on the Profumo affair.
October 7 » President Kennedy signs the ratification of the Partial Nuclear Test Ban Treaty.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I5589.php : accessed September 23, 2026), "JANTJE WILLEMINA SUSANNA van WIJK (1895-1963)".
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