January 31 » Czechoslav Trade Union Association is founded in Prague.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
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.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage August 11, 1921
The temperature on August 11, 1921 was between 12.0 °C and 20.3 °C and averaged 15.4 °C. There was 0.9 mm of rain. There was 1.9 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. 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 12 » Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.
March 31 » The Royal Australian Air Force is formed.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
August 23 » British airship R-38 experiences structural failure over Hull in England and crashes in the Humber Estuary. Of her 49 British and American training crew, only four survive.
October 29 » The Link River Dam, a part of the Klamath Reclamation Project, is completed.
Day of death July 4, 1980
The temperature on July 4, 1980 was between 8.6 °C and 16.8 °C and averaged 13.8 °C. There was 0.7 mm of rain during 1.5 hours. The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 25 » The government of Suriname is overthrown by a military coup led by Dési Bouterse.
April 24 » Eight U.S. servicemen die in Operation Eagle Claw as they attempt to end the Iran hostage crisis.
April 30 » Beatrix is inaugurated as Queen of the Netherlands following the abdication of Juliana.
May 18 » Students in Gwangju, South Korea begin demonstrations calling for democratic reforms.
August 27 » A massive bomb planted by extortionist John Birges explodes at Harvey's Resort Hotel in Stateline, Nevada after a failed disarming attempt by the FBI. Although the hotel is damaged, no one is injured.
November 4 » Ronald Reagan is elected the 40th President of The United States, defeating incumbent Jimmy Carter.
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/I202001.php : accessed January 28, 2026), "Jan Andries Blaak (1897-1980)".
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