The temperature on June 16, 1910 was between 10.7 °C and 16.6 °C and averaged 13.5 °C. There was 1.8 hours of sunshine (11%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
March 3 » Rockefeller Foundation: John D. Rockefeller Jr. announces his retirement from managing his businesses so that he can devote all his time to philanthropy.
September 12 » Premiere performance of Gustav Mahler's Symphony No. 8 in Munich (with a chorus of 852 singers and an orchestra of 171 players. Mahler's rehearsal assistant conductor was Bruno Walter).
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
October 20 » The hull of the RMSOlympic, sister-ship to the ill-fated RMS Titanic, is launched from the Harland and Wolff shipyard in Belfast.
October 22 » Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
Day of marriage January 22, 1937
The temperature on January 22, 1937 was between 4.1 °C and 10.7 °C and averaged 8.5 °C. There was 6.9 mm of rain during 5.8 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
February 19 » Yekatit 12: During a public ceremony at the Viceregal Palace (the former Imperial residence) in Addis Ababa, Ethiopia, two Ethiopian nationalists of Eritrean origin attempt to kill viceroy Rodolfo Graziani with a number of grenades.
April 12 » Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
June 11 » Great Purge: The Soviet Union under Joseph Stalin executes eight army leaders.
September 21 » J. R. R. Tolkien's The Hobbit is published.
September 22 » Spanish Civil War: Peña Blanca is taken, ending the Battle of El Mazuco.
October 2 » Rafael Trujillo orders the execution of Haitians living in the northwestern region of the Dominican Republic.
Day of death February 8, 1999
The temperature on February 8, 1999 was between -4.1 °C and 3.4 °C and averaged -0.2 °C. There was 6.6 mm of rain during 6.7 hours. There was 4.2 hours of sunshine (44%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
April 8 » Haryana Gana Parishad, a political party in the Indian state of Haryana, merges with the Indian National Congress.
April 18 » Wayne Gretzky, the National Hockey League's all-time points scorer, plays his final game at Madison Square Garden as a teammate of the New York Rangers in a 2-1 overtime loss to the Pittsburgh Penguins. Gretzky recorded his final career point, an assist, bringing his career point total to 2,857.
May 1 » SpongeBob SquarePants premieres on Nickelodeon.
May 7 » Pope John Paul II travels to Romania, becoming the first pope to visit a predominantly Eastern Orthodox country since the Great Schism in 1054.
May 28 » In Milan, Italy, after 22 years of restoration work, Leonardo da Vinci's masterpiece The Last Supper is put back on display.
November 2 » Xerox murders: In the worst mass murder in the history of Hawaii, a gunman shoots at eight people in his workplace, killing seven.
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/I8521.php : accessed February 6, 2026), "Jan Oortwijn (1910-1999)".
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