The temperature on August 23, 1880 was about 21.2 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
February 13 » Thomas Edison observes Thermionic emission.
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
September 1 » The army of Mohammad Ayub Khan is routed by the British at the Battle of Kandahar, ending the Second Anglo-Afghan War.
November 11 » Australian bushranger Ned Kelly is hanged at Melbourne Gaol.
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of marriage February 4, 1911
The temperature on February 4, 1911 was between -4.1 °C and 5.7 °C and averaged 2.3 °C. There was 0.3 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
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 death July 28, 1959
The temperature on July 28, 1959 was between 10.9 °C and 21.7 °C and averaged 16.6 °C. There was 1.2 mm of rain during 0.7 hours. There was 3.8 hours of sunshine (24%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 3 » Alaska is admitted as the 49th U.S. state.
January 7 » The United States recognizes the new Cuban government of Fidel Castro.
April 8 » The Organization of American States drafts an agreement to create the Inter-American Development Bank.
October 21 » In New York City, the Solomon R. Guggenheim Museum opens to the public.
October 30 » Piedmont Airlines Flight 349 crashes on approach to Charlottesville–Albemarle Airport in Albemarle County, Virginia, killing 26 of the 27 on board.
November 21 » American disc jockey Alan Freed, who had popularized the term "rock and roll" and music of that style, is fired from WABC-AM radio over allegations he had participated in the payola scandal.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I3574.php : accessed February 17, 2026), "Jantje Helmens (1880-1959)".
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