The temperature on July 23, 1919 was between 9.4 °C and 14.8 °C and averaged 12.3 °C. There was 8.6 mm of rain. There was 0.7 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
January 15 » Great Molasses Flood: A wave of molasses released from an exploding storage tank sweeps through Boston, Massachusetts, killing 21 and injuring 150.
April 10 » Mexican Revolution leader Emiliano Zapata is ambushed and shot dead by government forces in Morelos.
May 1 » German troops enter Munich to suppress the Bavarian Soviet Republic.
May 15 » The Winnipeg general strike begins. By 11:00, almost the whole working population of Winnipeg had walked off the job.
September 4 » Mustafa Kemal Atatürk, who founded the Republic of Turkey, gathers a congress in Sivas to make decisions as to the future of Anatolia and Thrace.
September 18 » The Netherlands gives women the right to vote.
Day of death May 9, 1999
The temperature on May 9, 1999 was between 10.6 °C and 21.3 °C and averaged 15.6 °C. There was 11.4 hours of sunshine (74%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 25 » A 6.0 magnitude earthquake hits western Colombia killing at least 1,000.
April 1 » Nunavut is established as a Canadian territory carved out of the eastern part of the Northwest Territories.
May 25 » The United States House of Representatives releases the Cox Report which details the People's Republic of China's nuclear espionage against the U.S. over the prior two decades.
May 28 » In Milan, Italy, after 22 years of restoration work, Leonardo da Vinci's masterpiece The Last Supper is put back on display.
June 10 » Kosovo War: NATO suspends its airstrikes after Slobodan Milošević agrees to withdraw Serbian forces from Kosovo.
August 10 » Los Angeles Jewish Community Center shooting.
When copying data from this family tree, please include a reference to the origin: Dirk Kalksma, "Family tree Kalksma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kalksma/I725.php : accessed February 15, 2026), "Johannes Simon Kalksma (1919-1999)".
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