The average temperature on January 2, 1909 was 2.0 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 16 » Ernest Shackleton's expedition finds the magnetic South Pole.
February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
March 23 » Theodore Roosevelt leaves New York for a post-presidency safari in Africa. The trip is sponsored by the Smithsonian Institution and National Geographic Society.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
April 11 » The city of Tel Aviv is founded.
June 2 » Alfred Deakin becomes Prime Minister of Australia for the third time.
Day of marriage September 11, 1930
The temperature on September 11, 1930 was between 11.8 °C and 19.0 °C and averaged 15.1 °C. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 3 » Communist Party of Vietnam is founded at a "Unification Conference" held in Kowloon, British Hong Kong.
February 18 » Elm Farm Ollie becomes the first cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft.
May 7 » The 7.1 Mw Salmas earthquake shakes northwestern Iran and southeastern Turkey with a maximum Mercalli intensity of IX (Violent). Up to three-thousand people were killed.
July 30 » In Montevideo, Uruguay wins the first FIFA World Cup.
August 29 » The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland.
December 16 » Bank robber Herman Lamm and members of his crew are killed by a 200-strong posse, following a botched bank robbery, in Clinton, Indiana.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I5519.php : accessed February 13, 2026), "Frederik Nicolaas Eracius Hanekroot (1909-)".
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