The temperature on August 15, 1884 was about 19.5 °C. The air pressure was 1 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 77%. 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.
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.
June 16 » The first purpose-built roller coaster, LaMarcus Adna Thompson's "Switchback Railway", opens in New York's Coney Island amusement park.
July 3 » Dow Jones & Company publishes its first stock average.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
October 22 » The International Meridian Conference designates the Royal Observatory, Greenwich as the world's prime meridian.
Day of marriage August 13, 1904
The temperature on August 13, 1904 was between 6.1 °C and 21.5 °C and averaged 14.8 °C. There was 9.4 hours of sunshine (63%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 8 » The Blackstone Library is dedicated, marking the beginning of the Chicago Public Library system.
April 8 » The French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.
May 10 » The Horch & Cir. Motorwagenwerke AG is founded. It would eventually become the Audi company.
June 16 » Eugen Schauman assassinates Nikolay Bobrikov, Governor-General of Finland.
August 10 » Russo-Japanese War: The Battle of the Yellow Sea between the Russian and Japanese battleship fleets takes place.
August 23 » The automobile tire chain is patented.
Day of death October 31, 1962
The temperature on October 31, 1962 was between 2.9 °C and 9.4 °C and averaged 6.3 °C. There was 2.8 mm of rain during 2.8 hours. There was 2.9 hours of sunshine (30%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 3 » Pope John XXIII excommunicates Fidel Castro.
February 10 » Cold War: Captured American U2 spy-plane pilot Gary Powers is exchanged for captured Soviet spy Rudolf Abel.
March 29 » Arturo Frondizi, the president of Argentina, is overthrown in a military coup by Argentina's armed forces, ending an 11⁄2 day constitutional crisis.
June 2 » During the FIFA World Cup, police had to intervene multiple times in fights between Chilean and Italian players in one of the most violent games in football history.
September 6 » Archaeologist Peter Marsden discovers the first of the Blackfriars Ships dating back to the second century AD in the Blackfriars area of the banks of the River Thames in London.
October 13 » The Pacific Northwest experiences a cyclone the equal of a Cat 3 hurricane, with winds above 150mph. 46 people die.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I15019.php : accessed February 3, 2026), "Arnoldus Keizer (1884-1962)".
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