January 9 » Hallam Tennyson, 2nd Baron Tennyson, son of the poet Alfred Tennyson, becomes the second Governor-General of Australia.
February 23 » Cuba leases Guantánamo Bay to the United States "in perpetuity".
July 1 » Start of first Tour de France bicycle race.
October 10 » The Women's Social and Political Union is founded in support of the enfranchisement of British women.
October 31 » The Purdue Wreck, a railroad train collision in Indianapolis, kills 17 people, including 14 players of the Purdue University football team.
November 17 » The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
Christening day September 20, 1903
The temperature on September 20, 1903 was between 10.1 °C and 21.1 °C and averaged 15.3 °C. There was 12.3 hours of sunshine (99%). Source: KNMI
July 4 » The Philippine–American War is officially concluded.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
September 11 » The first race at the Milwaukee Mile in West Allis, Wisconsin is held. It is the oldest major speedway in the world.
October 1 » Baseball: The Boston Americans play the Pittsburgh Pirates in the first game of the modern World Series.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
December 16 » Taj Mahal Palace & Tower hotel in Bombay first opens its doors to guests.
Day of death May 6, 1975
The temperature on May 6, 1975 was between 7.6 °C and 18.6 °C and averaged 12.9 °C. There was -0.1 mm of rain. There was 8.4 hours of sunshine (55%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
March 27 » Construction of the Trans-Alaska Pipeline System begins.
April 17 » The Cambodian Civil War ends. The Khmer Rouge captures the capital Phnom Penh and Cambodian government forces surrender.
June 26 » Two FBI agents and a member of the American Indian Movement are killed in a shootout on the Pine Ridge Indian Reservation in South Dakota; Leonard Peltier is later convicted of the murders in a controversial trial.
August 27 » The Governor of Portuguese Timor abandons its capital, Dili, and flees to Atauro Island, leaving control to a rebel group.
September 28 » The Spaghetti House siege, in which nine people are taken hostage, takes place in London.
When copying data from this family tree, please include a reference to the origin: Guus Nijhuis, "Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/gelderman/I25374.php : accessed December 30, 2025), "Jan Hendrikusen Gelderman (1903-1975)".
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