The temperature on November 30, 1911 was between 5.4 °C and 7.9 °C and averaged 6.5 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
Day of marriage April 3, 1937
The temperature on April 3, 1937 was between 8.4 °C and 12.9 °C and averaged 10.2 °C. There was 1.6 mm of rain during 3.5 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
January 23 » The trial of the anti-Soviet Trotskyist center sees seventeen mid-level Communists accused of sympathizing with Leon Trotsky and plotting to overthrow Joseph Stalin's regime.
May 6 » Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed.
May 26 » Walter Reuther and members of the United Auto Workers (UAW) clashed with Ford Motor Company security guards at the River Rouge Complex complex in Dearborn, Michigan, during the Battle of the Overpass.
August 2 » The Marihuana Tax Act of 1937 is passed in America, the effect of which is to render marijuana and all its by-products illegal.
December 13 » Second Sino-Japanese War: Battle of Nanking: The city of Nanjing, defended by the National Revolutionary Army under the command of General Tang Shengzhi, falls to the Japanese. This is followed by the Nanking Massacre, in which Japanese troops rape and slaughter hundreds of thousands of civilians.
December 22 » The Lincoln Tunnel opens to traffic in New York City.
Day of death December 25, 1969
The temperature on December 25, 1969 was between 2.5 °C and 4.7 °C and averaged 3.5 °C. There was 1.9 mm of rain during 3.8 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
January 25 » Brazilian Army captain Carlos Lamarca deserts in order to fight against the military dictatorship, taking with him ten machine guns and 63 rifles.
March 13 » Apollo 9 returns safely to Earth after testing the Lunar Module.
April 22 » British yachtsman Sir Robin Knox-Johnston wins the Sunday Times Golden Globe Race and completes the first solo non-stop circumnavigation of the world.
May 9 » Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
October 8 » The opening rally of the Days of Rage occurs, organized by the Weather Underground in Chicago.
November 20 » Vietnam War: The Plain Dealer (Cleveland, Ohio) publishes explicit photographs of dead villagers from the My Lai Massacre in Vietnam.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I17018.php : accessed January 28, 2026), "Willem Hendrik Frederik Dreyer (1911-1969)".
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