The temperature on July 12, 1911 was between 12.2 °C and 22.7 °C and averaged 17.2 °C. There was 8.0 hours of sunshine (49%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
Day of marriage August 24, 1939
The temperature on August 24, 1939 was between 15.4 °C and 24.7 °C and averaged 19.7 °C. There was 6.2 hours of sunshine (44%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
February 10 » Spanish Civil War: The Nationalists conclude their conquest of Catalonia and seal the border with France.
August 25 » The United Kingdom and Poland form a military alliance in which the UK promises to defend Poland in case of invasion by a foreign power.
August 27 » First flight of the turbojet-powered Heinkel He 178, the world's first jet aircraft.
September 2 » World War II: Following the start of the invasion of Poland the previous day, the Free City of Danzig (now Gdańsk, Poland) is annexed by Nazi Germany.
September 30 » NBC broadcasts the first televised American football game.
December 13 » World War II: Battle of the River Plate: Captain Hans Langsdorff of the German Deutschland-class cruiser (pocket battleship) Admiral Graf Spee engages with Royal Navy cruisers HMSExeter, HMSAjax and HMSAchilles.
Day of death September 28, 1980
The temperature on September 28, 1980 was between 11.1 °C and 23.1 °C and averaged 16.3 °C. There was 5.2 hours of sunshine (44%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the ??. 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.
January 26 » Egypt–Israel relations are formally established.
May 18 » Mount St. Helens erupts in Washington, United States, killing 57 people and causing $3billion in damage.
July 5 » Swedish tennis player Björn Borg wins his fifth Wimbledon final and becomes the first male tennis player to win the championships five times in a row (1976–1980).
September 18 » Soyuz 38 carries two cosmonauts (including one Cuban) to the Salyut 6 space station.
October 25 » Proceedings on the Hague Convention on the Civil Aspects of International Child Abduction conclude.
December 11 » The Comprehensive Environmental Response, Compensation, and Liability Act (Superfund) is enacted by the U.S. Congress.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I72085.php : accessed March 7, 2026), "Bertha Antonia van Selm (1911-1980)".
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