The temperature on May 21, 1917 was between 12.1 °C and 23.3 °C and averaged 17.8 °C. There was 12.6 hours of sunshine (79%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the east-southeast. 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 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
January 22 » World War I: President Woodrow Wilson of the still-neutral United States calls for "peace without victory" in Europe.
June 4 » The first Pulitzer Prizes are awarded: Laura E. Richards, Maude H. Elliott, and Florence Hall receive the first Pulitzer for biography (for Julia Ward Howe). Jean Jules Jusserand receives the first Pulitzer for history for his work With Americans of Past and Present Days. Herbert B. Swope receives the first Pulitzer for journalism for his work for the New York World.
September 14 » The Russian Empire is formally replaced by the Russian Republic.
November 2 » The Balfour Declaration proclaims British support for the "establishment in Palestine of a national home for the Jewish people" with the clear understanding "that nothing shall be done which may prejudice the civil and religious rights of existing non-Jewish communities".
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
Day of marriage August 21, 1943
The temperature on August 21, 1943 was between 18.0 °C and 27.3 °C and averaged 21.9 °C. There was 3.3 mm of rain during 1.8 hours. There was 9.9 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 9 » World War II: Allied authorities declare Guadalcanal secure after Imperial Japan evacuates its remaining forces from the island, ending the Battle of Guadalcanal.
April 8 » U.S. President Franklin D. Roosevelt, in an attempt to check inflation, freezes wages and prices, prohibits workers from changing jobs unless the war effort would be aided thereby, and bars rate increases by common carriers and public utilities.
July 9 » World War II: The Allied invasion of Sicily soon causes the downfall of Mussolini and forces Hitler to break off the Battle of Kursk.
July 11 » Massacres of Poles in Volhynia and Eastern Galicia by the Ukrainian Insurgent Army within the Reichskommissariat Ukraine (Volhynia) peak.
August 29 » World War II: German-occupied Denmark scuttles most of its navy; Germany dissolves the Danish government.
October 17 » Nazi Holocaust in Poland: Sobibór extermination camp is closed.
Day of death April 4, 2006
The temperature on April 4, 2006 was between 2.1 °C and 9.0 °C and averaged 5.4 °C. There was 1.0 mm of rain during 1.0 hours. There was 9.3 hours of sunshine (71%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
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.
In The Netherlands , there was from Friday, July 7, 2006 to Thursday, February 22, 2007 the cabinet Balkenende III, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
February 17 » A massive mudslide occurs in Southern Leyte, Philippines; the official death toll is set at 1,126.
February 19 » A methane explosion in a coal mine near Nueva Rosita, Mexico, kills 65 miners.
July 17 » The 7.7 Mw Pangandaran tsunami earthquake severely affects the Indonesian island of Java, killing 668 people, and leaving more than 9,000 injured.
August 24 » The International Astronomical Union (IAU) redefines the term "planet" such that Pluto is now considered a dwarf planet.
August 25 » Former Prime Minister of Ukraine Pavlo Lazarenko is sentenced to nine years imprisonment for money laundering, wire fraud, and extortion.
November 5 » Saddam Hussein, former president of Iraq, and his co-defendants Barzan Ibrahim al-Tikriti and Awad Hamed al-Bandar, are sentenced to death in the al-Dujail trial for their roles in the 1982 massacre of 148 Shi'a Muslims.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I262124.php : accessed February 28, 2026), "Antonius Bernardus "Toon" Sijbom (1917-2006)".
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