The temperature on February 18, 1911 was between 7.7 °C and 9.9 °C and averaged 9.4 °C. The average windspeed was 6 Bft (strong wind) and was prevailing from the west-southwest. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage July 28, 1932
The temperature on July 28, 1932 was between 12.6 °C and 17.7 °C and averaged 14.9 °C. There was 15.6 mm of rain during 8.4 hours. There was 0.7 hours of sunshine (4%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
July 1 » Australia's national broadcaster, the Australian Broadcasting Corporation, was formed.
July 31 » The NSDAP (Nazi Party) wins more than 38% of the vote in German elections.
August 24 » Amelia Earhart becomes the first woman to fly across the United States non-stop (from Los Angeles to Newark, New Jersey).
September 29 » Chaco War: Last day of the Battle of Boquerón between Paraguay and Bolivia.
October 15 » Tata Airlines (later to become Air India) makes its first flight.
Day of death July 30, 1991
The temperature on July 30, 1991 was between 17.5 °C and 29.2 °C and averaged 23.4 °C. There was 10.3 hours of sunshine (66%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 9 » Voters in Lithuania vote for independence.
February 16 » Nicaraguan Contras leader Enrique Bermúdez is assassinated in Managua.
May 19 » Croatians vote for independence in a referendum.
June 7 » Mount Pinatubo erupts, generating an ash column 7 kilometres (4.3mi) high.
June 17 » Apartheid: The South African Parliament repeals the Population Registration Act which required racial classification of all South Africans at birth.
November 14 » American and British authorities announce indictments against two Libyan intelligence officials in connection with the downing of the Pan Am Flight 103.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I76462.php : accessed February 4, 2026), "Maartje van Roon (1911-1991)".
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