The temperature on April 13, 1917 was between 1.2 °C and 9.0 °C and averaged 4.3 °C. There was 1.3 mm of rain. There was 7.2 hours of sunshine (52%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
June 7 » World War I: Battle of Messines: Allied soldiers detonate a series of mines underneath German trenches at Messines Ridge, killing 10,000 German troops.
July 25 » Sir Robert Borden introduces the first income tax in Canada as a "temporary" measure (lowest bracket is 4% and highest is 25%).
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
November 28 » The Estonian Provincial Assembly declares itself the sovereign power of Estonia.
Day of marriage May 21, 1949
The temperature on May 21, 1949 was between 5.8 °C and 18.7 °C and averaged 12.7 °C. There was 14.1 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 11 » The first "networked" television broadcasts took place as KDKA-TV in Pittsburgh, Pennsylvania goes on the air connecting the east coast and mid-west programming.
January 15 » Chinese Civil War: The Communist forces take over Tianjin from the Nationalist Government.
February 14 » The Knesset (parliament of Israel) convenes for the first time.
March 8 » President of France Vincent Auriol and ex-emperor of Annam Bảo Đại sign the Élysée Accords, giving Vietnam greater independence from France and creating the State of Vietnam to oppose Viet Minh-led Democratic Republic of Vietnam.
July 1 » The merger of two princely states of India, Cochin and Travancore, into the state of Thiru-Kochi (later re-organized as Kerala) in the Indian Union ends more than 1,000 years of princely rule by the Cochin royal family.
December 27 » Indonesian National Revolution: The Netherlands officially recognizes Indonesian independence. End of the Dutch East Indies.
Day of death November 4, 2000
The temperature on November 4, 2000 was between 3.8 °C and 11.1 °C and averaged 6.8 °C. There was 1.4 mm of rain during 2.3 hours. There was 5.6 hours of sunshine (59%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 4 » The World Summit Against Cancer for the New Millennium, Charter of Paris is signed by the President of France, Jacques Chirac and the Director General of UNESCO, Koichiro Matsuura, initiating World Cancer Day which is held on February 4 every year.
February 5 » Russian forces massacre at least 60 civilians in the Novye Aldi suburb of Grozny, Chechnya.
March 17 » Five hundred and thirty members of the Ugandan cult Movement for the Restoration of the Ten Commandments of God die in a fire, considered to be a mass murder or suicide orchestrated by leaders of the cult. Elsewhere another 248 members are later found dead.
August 8 » Confederate submarine H.L. Hunley is raised to the surface after 136 years on the ocean floor and 30 years after its discovery by undersea explorer E. Lee Spence.
August 12 » The Russian Navy submarine Kursk explodes and sinks in the Barents Sea during a military exercise, killing her entire 118-man crew.
November 7 » Controversial US presidential election that is later resolved in the Bush v. Gore Supreme Court Case, electing George W. Bush the 43rd President of the United States.
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/I520135.php : accessed February 27, 2026), "Jan Hulzinga (1917-2000)".
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