The temperature on December 17, 1910 was between 6.7 °C and 9.8 °C and averaged 8.1 °C. There was 3.3 mm of rain. There was 0.3 hours of sunshine (4%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
January 15 » Construction ends on the Buffalo Bill Dam in Wyoming, United States, which was the highest dam in the world at the time, at 325ft (99m).
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
August 29 » The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea.
September 12 » Premiere performance of Gustav Mahler's Symphony No. 8 in Munich (with a chorus of 852 singers and an orchestra of 171 players. Mahler's rehearsal assistant conductor was Bruno Walter).
October 1 » A large bomb destroys the Los Angeles Times building, killing 21.
October 20 » The hull of the RMSOlympic, sister-ship to the ill-fated RMS Titanic, is launched from the Harland and Wolff shipyard in Belfast.
Day of marriage May 4, 1939
The temperature on May 4, 1939 was between 1.1 °C and 14.9 °C and averaged 8.8 °C. There was 8.6 hours of sunshine (57%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
January 24 » The deadliest earthquake in Chilean history strikes Chillán, killing approximately 28,000 people.
March 14 » Slovakia declares independence under German pressure.
May 14 » Lina Medina becomes the youngest confirmed mother in medical history at the age of five.
August 23 » World War II: Nazi Germany and the Soviet Union sign a non-aggression treaty, the Molotov–Ribbentrop Pact. In a secret addition to the pact, the Baltic states, Finland, Romania, and Poland are divided between the two nations.
September 10 » World War II: The submarine HMSOxley is mistakenly sunk by the submarine HMSTriton near Norway and becomes the Royal Navy's first loss of a submarine in the war.
October 1 » World War II: After a one-month siege, German troops occupy Warsaw.
Day of death August 19, 1986
The temperature on August 19, 1986 was between 11.7 °C and 18.4 °C and averaged 14.4 °C. There was 2.2 mm of rain during 2.8 hours. There was 2.2 hours of sunshine (15%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 4 » The Soviet Vega 1 begins returning images of Halley's Comet and the first images of its nucleus.
March 7 » Challenger Disaster: Divers from the USSPreserver locate the crew cabin of Challenger on the ocean floor.
April 28 » High levels of radiation resulting from the Chernobyl disaster are detected at a nuclear power plant in Sweden, leading Soviet authorities to publicly announce the accident.
April 29 » Chernobyl disaster: American and European spy satellites capture the ruins of the 4th Reactor at the Chernobyl Power Plant.
July 2 » Rodrigo Rojas and Carmen Gloria Quintana are burnt alive during a street demonstration against the dictatorship of General Augusto Pinochet in Chile.
November 25 » The King Fahd Causeway is officially opened in the Persian Gulf.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I11508.php : accessed October 12, 2026), "Willem van Kammen (1910-1986)".
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