The temperature on July 31, 1927 was between 12.5 °C and 22.2 °C and averaged 17.9 °C. There was 3.2 hours of sunshine (21%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
January 7 » The first transatlantic telephone service is established from New York City to London.
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
June 29 » The Bird of Paradise, a U.S. Army Air Corps Fokker tri-motor, completes the first transpacific flight, from the mainland United States to Hawaii.
August 19 » Patriarch Sergius of Moscow proclaims the declaration of loyalty of the Russian Orthodox Church to the Soviet Union.
November 12 » Leon Trotsky is expelled from the Soviet Communist Party, leaving Joseph Stalin in undisputed control of the Soviet Union.
November 13 » The Holland Tunnel opens to traffic as the first Hudson River vehicle tunnel linking New Jersey to New York City.
Day of marriage June 7, 1947
The temperature on June 7, 1947 was between 11.3 °C and 16.0 °C and averaged 13.2 °C. There was 1.2 mm of rain during 1.8 hours. There was 2.8 hours of sunshine (17%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 10 » The Paris Peace Treaties are signed by Italy, Romania, Hungary, Bulgaria, Finland and the Allies of World War II.
April 1 » The only mutiny in the history of the Royal New Zealand Navy begins.
April 28 » Thor Heyerdahl and five crew mates set out from Peru on the Kon-Tiki to demonstrate that Peruvian natives could have settled Polynesia.
August 15 » Founder of Pakistan, Muhammad Ali Jinnah is sworn in as first Governor-General of Pakistan in Karachi.
November 18 » The Ballantyne's Department Store fire in Christchurch, New Zealand, kills 41; it is the worst fire disaster in the history of New Zealand.
November 25 » Red Scare: The "Hollywood Ten" are blacklisted by Hollywood movie studios.
Day of death April 20, 1950
The temperature on April 20, 1950 was between 6.0 °C and 17.7 °C and averaged 11.6 °C. There was 12.0 hours of sunshine (85%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
March 17 » Researchers at the University of California, Berkeley announce the creation of element 98, which they name "californium".
May 5 » Bhumibol Adulyadej is crowned as King of Thailand.
June 27 » The United States decides to send troops to fight in the Korean War.
June 28 » Korean War: North Korean Army conducts the Seoul National University Hospital massacre.
August 20 » Korean War: United Nations repel an offensive by North Korean divisions attempting to cross the Nakdong River and assault the city of Taegu.
December 2 » Korean War: Battle of the Ch'ongch'on River ended, with decisive Chinese victory, UN forces were completely expelled from North Korea.
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/I182788.php : accessed October 22, 2026), "Aaltje Slotegraaf (1927-1950)".
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