The temperature on November 17, 1912 was between 7.2 °C and 8.8 °C and averaged 8.0 °C. There was 2.6 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 23 » The International Opium Convention is signed at The Hague.
March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
April 15 » The British passenger liner RMSTitanic sinks in the North Atlantic at 2:20a.m., two hours and forty minutes after hitting an iceberg. Only 710 of 2,227 passengers and crew on board survive.
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
April 20 » Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
October 7 » The Helsinki Stock Exchange sees its first transaction.
Day of marriage May 24, 1947
The temperature on May 24, 1947 was between 9.1 °C and 19.7 °C and averaged 14.9 °C. There was 0.1 mm of rain during 0.3 hours. There was 8.1 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 25 » Thomas Goldsmith Jr. files a patent for a "Cathode Ray Tube Amusement Device", the first ever electronic game.
March 12 » Cold War: The Truman Doctrine is proclaimed to help stem the spread of Communism.
April 16 » An explosion on board a freighter in port causes the city of Texas City, Texas, to catch fire, killing almost 600.
May 1 » Portella della Ginestra massacre against May Day celebrations in Sicily by the bandit and separatist leader Salvatore Giuliano where 11 persons are killed and 33 wounded.
September 15 » Typhoon Kathleen hit the Kantō region in Japan killing 1,077.
October 30 » The General Agreement on Tariffs and Trade (GATT), the foundation of the World Trade Organization (WTO), is founded.
Day of death October 2, 1980
The temperature on October 2, 1980 was between 5.1 °C and 16.3 °C and averaged 11.5 °C. There was 2.3 hours of sunshine (20%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. 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.
January 26 » Egypt–Israel relations are formally established.
May 20 » In a referendum in Quebec, the population rejects, by 60% of the vote, a government proposal to move towards independence from Canada.
July 29 » Iran adopts a new "holy" flag after the Islamic Revolution.
September 11 » A new constitution of Chile is established under the influence of then Chilean dictator Augusto Pinochet, which is subject to controversy in Chile today.
September 17 » After weeks of strikes at the Lenin Shipyard in Gdańsk, Poland, the nationwide independent trade union Solidarity is established.
November 20 » Lake Peigneur drains into an underlying salt deposit. A misplaced Texaco oil probe had been drilled into the Diamond Crystal Salt Mine, causing water to flow down into the mine, eroding the edges of the hole.
When copying data from this family tree, please include a reference to the origin: Claudia Vreugdenhil, "Family tree Strootman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-strootman/I1388.php : accessed February 5, 2026), "Hendrik HARTMAN (1912-1980)".
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