The temperature on September 23, 1915 was between 5.8 °C and 21.2 °C and averaged 14.0 °C. There was 7.4 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
May 17 » The last British Liberal Party government (led by H. H. Asquith) falls.
June 9 » William Jennings Bryan resigns as Woodrow Wilson's Secretary of State over a disagreement regarding the United States' handling of the sinking of the RMSLusitania.
July 25 » RFC Captain Lanoe Hawker becomes the first British pursuit aviator to earn the Victoria Cross.
September 5 » The pacifist Zimmerwald Conference begins.
December 20 » World War I: The last Australian troops are evacuated from Gallipoli.
Day of death August 4, 1999
The temperature on August 4, 1999 was between 13.9 °C and 28.2 °C and averaged 21.9 °C. There was 6.7 hours of sunshine (44%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west. Source: KNMI
March 11 » Infosys becomes the first Indian company listed on the NASDAQ stock exchange.
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.
June 10 » Kosovo War: NATO suspends its airstrikes after Slobodan Milošević agrees to withdraw Serbian forces from Kosovo.
June 12 » Kosovo War: Operation Joint Guardian begins when a NATO-led United Nations peacekeeping force (KFor) enters the province of Kosovo in Federal Republic of Yugoslavia.
July 1 » The Scottish Parliament is officially opened by Elizabeth II on the day that legislative powers are officially transferred from the old Scottish Office in London to the new devolved Scottish Executive in Edinburgh. In Wales, the powers of the Welsh Secretary are transferred to the National Assembly.
December 22 » Just after taking off from London Stansted Airport, Korean Air Cargo Flight 8509 crashes into Hatfield Forest near Great Hallingbury, killing all four people on board.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I2727.php : accessed January 30, 2026), "Leonardus Hendricus Antonius "Leo" van Deventer (1915-1999)".
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