The temperature on August 1, 1912 was between 9.3 °C and 18.5 °C and averaged 15.2 °C. There was 7.2 hours of sunshine (46%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 11 » Immigrant textile workers in Lawrence, Massachusetts, go on strike when wages are reduced in response to a mandated shortening of the work week.
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
November 7 » The Deutsche Opernhaus (now Deutsche Oper Berlin) opens in the Berlin neighborhood of Charlottenburg, with a production of Beethoven's Fidelio.
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage December 24, 1938
The temperature on December 24, 1938 was between -6.4 °C and -3.8 °C and averaged -5.5 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
February 11 » BBC Television produces the world's first ever science fiction television programme, an adaptation of a section of the Karel Čapek play R.U.R., that coined the term "robot".
March 3 » Oil is discovered in Saudi Arabia.
July 10 » Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
October 1 » Germany annexes the Sudetenland.
October 31 » Great Depression: In an effort to restore investor confidence, the New York Stock Exchange unveils a fifteen-point program aimed to upgrade protection for the investing public.
Day of death December 9, 1981
The temperature on December 9, 1981 was between -1.2 °C and 2.6 °C and averaged 0.6 °C. There was 9.6 mm of rain during 4.8 hours. There was 4.0 hours of sunshine (51%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
February 8 » Twenty-one association football spectators are trampled to death at Karaiskakis Stadium in Neo Faliro, Greece, after a football match between Olympiacos F.C. and AEK Athens F.C.
March 5 » The ZX81, a pioneering British home computer, is launched by Sinclair Research and would go on to sell over 1⁄2 million units around the world.
April 14 » STS-1: The first operational Space Shuttle, Columbia completes its first test flight.
May 26 » An EA-6B Prowler crashes on the flight deck of the aircraft carrier USSNimitz, killing 14 crewmen and injuring 45 others.
July 29 » After impeachment on June 21, Abolhassan Banisadr flees with Massoud Rajavi to Paris, in an Iranian Air Force Boeing 707, piloted by Colonel Behzad Moezzi, to form the National Council of Resistance of Iran.
November 25 » Pope John Paul II appoints Joseph Cardinal Ratzinger (the future Pope Benedict XVI) Prefect of the Congregation for the Doctrine of the Faith.
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/I337066.php : accessed January 30, 2026), "Harm van der Laan (1912-1981)".
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