The temperature on August 31, 1921 was between 4.9 °C and 20.3 °C and averaged 13.2 °C. There was 9.2 hours of sunshine (67%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
July 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
Day of death April 25, 1975
The temperature on April 25, 1975 was between 4.8 °C and 13.7 °C and averaged 9.2 °C. There was 0.2 mm of rain during 0.7 hours. There was 8.3 hours of sunshine (57%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-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.
January 5 » The Tasman Bridge in Tasmania, Australia, is struck by the bulk ore carrier Lake Illawarra, killing twelve people.
March 6 » Algiers Accord: Iran and Iraq announce a settlement of their border dispute.
April 17 » The Cambodian Civil War ends. The Khmer Rouge captures the capital Phnom Penh and Cambodian government forces surrender.
July 15 » Space Race: Apollo–Soyuz Test Project features the dual launch of an Apollo spacecraft and a Soyuz spacecraft on the first joint Soviet-United States human-crewed flight. It was both the last launch of an Apollo spacecraft, and the Saturn family of rockets.
August 15 » Bangladeshi leader Sheikh Mujibur Rahman is killed along with most members of his family during a military coup.
September 16 » The first prototype of the Mikoyan MiG-31 interceptor makes its maiden flight.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I584068.php : accessed January 23, 2026), "Roy Christian Olson (1921-1975)".
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