January 31 » Czechoslav Trade Union Association is founded in Prague.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
Day of marriage February 27, 1920
The temperature on February 27, 1920 was between 1.6 °C and 6.2 °C and averaged 4.6 °C. There was 4.9 mm of rain. There was 0.9 hours of sunshine (8%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 13 » The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
May 2 » The first game of the Negro National League baseball is played in Indianapolis.
August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
August 26 » The 19th amendment to United States Constitution takes effect, giving women the right to vote.
November 2 » In the United States, KDKA of Pittsburgh starts broadcasting as the first commercial radio station. The first broadcast is the result of the 1920 United States presidential election.
November 15 » The Free City of Danzig is established.
Day of death September 15, 1972
The temperature on September 15, 1972 was between 6.9 °C and 15.1 °C and averaged 10.7 °C. There was 0.4 mm of rain during 0.3 hours. There was 6.3 hours of sunshine (49%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
January 20 » Pakistan launched its nuclear weapons program, a few weeks after its defeat in the Bangladesh Liberation War, as well as the Indo-Pakistani War of 1971.
February 21 » United States President Richard Nixon visits the People's Republic of China to normalize Sino-American relations.
April 6 » Vietnam War: Easter Offensive: American forces begin sustained air strikes and naval bombardments.
April 10 » Tombs containing bamboo slips, among them Sun Tzu's Art of War and Sun Bin's lost military treatise, are accidentally discovered by construction workers in Shandong.
July 23 » The United States launches Landsat 1, the first Earth-resources satellite.
September 24 » Japan Airlines Flight 472 lands at Juhu Aerodrome instead of Santacruz Airport in Bombay, India.
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/I80798.php : accessed October 19, 2026), "Ebbel van der Heide (1897-1972)".
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