The temperature on July 28, 1884 was about 19.5 °C. The air pressure was 2 kgf/m2 and came mainly from the north. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » Moses Fleetwood Walker becomes the first black person to play in a professional baseball game in the United States.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
October 14 » George Eastman receives a U.S. Government patent on his new paper-strip photographic film.
October 22 » The International Meridian Conference designates the Royal Observatory, Greenwich as the world's prime meridian.
Day of marriage May 29, 1909
The temperature on May 29, 1909 was between 8.1 °C and 16.5 °C and averaged 11.6 °C. There was 0.5 mm of rain. There was 3.1 hours of sunshine (19%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 9 » Ernest Shackleton, leading the Nimrod Expedition to the South Pole, plants the British flag 97 nautical miles (180km; 112mi) from the South Pole, the farthest anyone had ever reached at that time.
February 2 » The Paris Film Congress opens. An attempt by European producers to form an equivalent to the MPCC cartel in the United States.
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
August 24 » Workers start pouring concrete for the Panama Canal.
December 4 » In Canadian football, the First Grey Cup game is played. The University of Toronto Varsity Blues defeat the Toronto Parkdale Canoe Club, 26–6.
Day of death March 7, 1953
The temperature on March 7, 1953 was between 0.7 °C and 8.3 °C and averaged 4.6 °C. There was 0.5 mm of rain during 0.3 hours. There was 5.4 hours of sunshine (48%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 25 » Francis Crick and James Watson publish "Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid" describing the double helix structure of DNA.
May 4 » Ernest Hemingway wins the Pulitzer Prize for The Old Man and the Sea.
July 26 » Arizona Governor John Howard Pyle orders an anti-polygamy law enforcement crackdown on residents of Short Creek, Arizona, which becomes known as the Short Creek raid.
August 10 » First Indochina War: The French Union withdraws its forces from Operation Camargue against the Viet Minh in central Vietnam.
August 12 » The first testing of a real thermonuclear weapon (not test devices): The Soviet atomic bomb project continues with the detonation of "RDS-6s" (Joe 4), the first Soviet thermonuclear bomb.
October 1 » A Mutual Defense Treaty Between the United States and the Republic of Korea is concluded in Washington, D.C.
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/I63486.php : accessed October 9, 2026), "Pieter de Vries (1884-1953)".
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