The temperature on May 30, 1887 was about 15.0 °C. There was 0.3 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 85%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
October 1 » Balochistan is conquered by the British Empire.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
November 13 » Bloody Sunday clashes in central London.
Day of marriage June 9, 1915
The temperature on June 9, 1915 was between 14.9 °C and 26.1 °C and averaged 19.2 °C. There was 3.4 mm of rain. There was 4.6 hours of sunshine (28%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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.
January 25 » Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
March 20 » Albert Einstein publishes his general theory of relativity.
April 25 » World War I: The Battle of Gallipoli begins: The invasion of the Turkish Gallipoli Peninsula by British, French, Indian, Newfoundland, Australian and New Zealand troops, begins with landings at Anzac Cove and Cape Helles.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
September 30 » World War I: Radoje Ljutovac becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.
Day of death November 18, 1975
The temperature on November 18, 1975 was between 3.0 °C and 9.7 °C and averaged 6.5 °C. There was 2.0 mm of rain during 1.9 hours. There was 3.7 hours of sunshine (43%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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.
April 21 » Vietnam War: President of South Vietnam Nguyễn Văn Thiệu flees Saigon, as Xuân Lộc, the last South Vietnamese outpost blocking a direct North Vietnamese assault on Saigon, falls.
April 29 » Vietnam War: Operation Frequent Wind: The U.S. begins to evacuate U.S. citizens from Saigon before an expected North Vietnamese takeover. U.S. involvement in the war comes to an end.
August 4 » The Japanese Red Army takes more than 50 hostages at the AIA Building housing several embassies in Kuala Lumpur, Malaysia. The hostages include the U.S. consul and the Swedish Chargé d'affaires. The gunmen win the release of five imprisoned comrades and fly with them to Libya.
August 14 » The Rocky Horror Picture Show, the longest-running release in film history, opens in London.
September 16 » The first prototype of the Mikoyan MiG-31 interceptor makes its maiden flight.
October 22 » The Soviet unmanned space mission Venera 9 lands on Venus.
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/I58045.php : accessed December 27, 2025), "Freerk Laffra (1887-1975)".
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