April 20 » U.S. President William McKinley signed a joint resolution to Congress for declaration of war against Spain, beginning the Spanish–American War.
June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
July 3 » A Spanish squadron, led by Pascual Cervera y Topete, is defeated by an American squadron under William T. Sampson in the Battle of Santiago de Cuba.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
August 29 » The Goodyear tire company is founded.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
Day of marriage September 13, 1922
The temperature on September 13, 1922 was between 6.5 °C and 13.9 °C and averaged 10.1 °C. There was 2.2 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
April 16 » The Treaty of Rapallo, pursuant to which Germany and the Soviet Union re-establish diplomatic relations, is signed.
June 24 » The American Professional Football Association is renamed the National Football League.
June 28 » The Irish Civil War begins with the shelling of the Four Courts in Dublin by Free State forces.
July 9 » Johnny Weissmuller swims the 100 meters freestyle in 58.6 seconds breaking the world swimming record and the 'minute barrier'.
September 27 » King Constantine I of Greece abdicates his throne in favor of his eldest son, George II.
December 16 » President of Poland Gabriel Narutowicz is assassinated by Eligiusz Niewiadomski at the Zachęta Gallery in Warsaw.
Day of death August 11, 1986
The temperature on August 11, 1986 was between 11.1 °C and 23.2 °C and averaged 17.2 °C. There was -0.1 mm of rain. There was 4.7 hours of sunshine (31%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 19 » The first IBM PC computer virus is released into the wild. A boot sector virus dubbed (c)Brain, it was created by the Farooq Alvi Brothers in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written.
February 25 » People Power Revolution: President of the Philippines Ferdinand Marcos flees the nation after 20 years of rule; Corazon Aquino becomes the Philippines' first woman president.
April 26 » A nuclear reactor accident occurs at the Chernobyl Nuclear Power Plant in the Ukrainian Soviet Socialist Republic in the Soviet Union, creating the world's worst nuclear disaster.
August 6 » A low-pressure system that redeveloped off the New South Wales coast dumps a record 328 millimeters (13inches) of rain in a day on Sydney, New South Wales, Australia.
October 9 » The Phantom of the Opera, eventually the second longest running musical in London, opens at Her Majesty's Theatre.
October 29 » British Prime Minister Margaret Thatcher opens the last stretch of the M25 motorway.
When copying data from this family tree, please include a reference to the origin: Ph. Schmit, "Family tree Schmit", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-schmit/I1744.php : accessed February 3, 2026), "Jacobus Bernardus Maria "Ko" van Onna (1898-1986)".
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