January 31 » Czechoslav Trade Union Association is founded in Prague.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage April 30, 1921
The temperature on April 30, 1921 was between 6.8 °C and 20.2 °C and averaged 13.7 °C. There was 12.0 hours of sunshine (81%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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 15 » Kingdom of Romania establishes its legation in Helsinki.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 11 » Former president of the United States William Howard Taft is sworn in as 10th chief justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
October 13 » Soviet republics sign the Treaty of Kars to formalize the borders between Turkey and the South Caucasus states.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
Day of death October 1, 1974
The temperature on October 1, 1974 was between 1.6 °C and 13.3 °C and averaged 6.5 °C. There was 0.8 mm of rain during 0.2 hours. There was 3.3 hours of sunshine (28%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
March 9 » The Mars 7 Flyby bus releases the descent module too early, missing Mars.
March 29 » NASA's Mariner 10 becomes the first space probe to fly by Mercury.
August 8 » President Richard Nixon, in a nationwide television address, announces his resignation from the office of the President of the United States effective noon the next day.
September 1 » The SR-71 Blackbird sets (and holds) the record for flying from New York to London in the time of 1 hour, 54 minutes and 56.4 seconds at a speed of 1,435.587 miles per hour (2,310.353km/h).
November 20 » The United States Department of Justice files its final anti-trust suit against AT&T Corporation. This suit later leads to the breakup of AT&T and its Bell System.
November 22 » The United Nations General Assembly grants the Palestine Liberation Organization observer status.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I2195.php : accessed February 19, 2026), "Wolter Dekker (1897-1974)".
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