The temperature on April 1, 1921 was between 3.7 °C and 16.9 °C and averaged 9.9 °C. There was 9.9 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
May 8 » The creation of the Communist Party of Romania.
May 31 » The Tulsa race massacre kills at least 39, but other estimates of black fatalities vary from 55 to about 300.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 11 » A truce in the Irish War of Independence comes into effect.
July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
Day of death August 19, 2003
The temperature on August 19, 2003 was between 10.0 °C and 23.3 °C and averaged 17.9 °C. There was 7.0 hours of sunshine (48%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Monday, July 22, 2002 to Tuesday, May 27, 2003 the cabinet Balkenende I, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
In The Netherlands , there was from Tuesday, May 27, 2003 to Friday, July 7, 2006 the cabinet Balkenende II, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
May 12 » The Riyadh compound bombings, carried out by al-Qaeda, kill 26 people.
July 7 » NASA Opportunity rover, MER-B or Mars Exploration Rover–B, was launched into space aboard a Delta II rocket.
September 20 » Civil unrest in the Maldives breaks out after a prisoner is killed by guards.
September 25 » The 8.3 Mw Hokkaidō earthquake strikes just offshore Hokkaidō, Japan.
October 4 » The Maxim restaurant suicide bombing Israel kills twenty-one Israelis, both Jews and Arabs.
November 12 » Shanghai Transrapid sets a new world speed record (501 kilometres per hour (311mph)) for commercial railway systems, which remains the fastest for unmodified commercial rail vehicles.
When copying data from this family tree, please include a reference to the origin: C. Blom, "Family tree Blom", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_blom/I616.php : accessed February 24, 2026), "Jacobus Zwemmer (1921-2003)".
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