January 10 » The first great Texas oil gusher is discovered at Spindletop in Beaumont, Texas.
April 25 » New York becomes the first U.S. state to require automobile license plates.
September 28 » Philippine–American War: Filipino guerrillas kill more than forty American soldiers while losing 28 of their own.
October 12 » President Theodore Roosevelt officially renames the "Executive Mansion" to the White House.
October 24 » Annie Edson Taylor becomes the first person to go over Niagara Falls in a barrel.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of marriage April 21, 1924
The temperature on April 21, 1924 was between 3.2 °C and 12.3 °C and averaged 8.7 °C. There was 0.2 hours of sunshine (1%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 25 » The 1924 Winter Olympics opens in Chamonix, in the French Alps, inaugurating the Winter Olympic Games.
March 3 » The 407-year-old Islamic caliphate is abolished, when Caliph Abdülmecid II of the Ottoman Caliphate is deposed. The last remnant of the old regime gives way to the reformed Turkey of Kemal Atatürk.
March 25 » On the anniversary of Greek Independence, Alexandros Papanastasiou proclaims the Second Hellenic Republic.
May 8 » The Klaipėda Convention is signed formally incorporating Klaipėda Region (Memel Territory) into Lithuania.
June 10 » Fascists kidnap and kill Italian Socialist leader Giacomo Matteotti in Rome.
October 31 » World Savings Day is announced in Milan, Italy by the Members of the Association at the 1st International Savings Bank Congress (World Society of Savings Banks).
Day of death March 15, 1968
The temperature on March 15, 1968 was between 1.3 °C and 7.7 °C and averaged 4.2 °C. There was 8.8 mm of rain during 5.1 hours. There was 2.3 hours of sunshine (20%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 16 » General Motors produces its 100 millionth automobile, the Oldsmobile Toronado.
April 20 » English politician Enoch Powell makes his controversial "Rivers of Blood" speech.
June 9 » U.S. President Lyndon B. Johnson declares a national day of mourning following the assassination of Senator Robert F. Kennedy.
October 1 » Guyana nationalizes the British Guiana Broadcasting Service, which would eventually become part of the National Communications Network, Guyana.
October 14 » The first live TV broadcast by American astronauts in orbit is performed by the Apollo 7 crew.
December 24 » Apollo program: The crew of Apollo 8 enters into orbit around the Moon, becoming the first humans to do so. They performed ten lunar orbits and broadcast live TV pictures.
When copying data from this family tree, please include a reference to the origin: Wim Ackermans, "Family tree Ackermans", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ackermans/I4528.php : accessed January 28, 2026), "Harm Marten "Harm" Meelker (1901-1968)".
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