July 24 » O. Henry is released from prison in Columbus, Ohio, after serving three years for embezzlement from a bank.
August 10 » The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.
August 28 » Silliman University is founded in the Philippines. It is the first American private school in the country.
September 2 » Vice President of the United States Theodore Roosevelt utters the famous phrase, "Speak softly and carry a big stick" at the Minnesota State Fair.
September 7 » The Boxer Rebellion in Qing dynasty (modern-day China) officially ends with the signing of the Boxer Protocol.
Day of marriage September 17, 1931
The temperature on September 17, 1931 was between 9.4 °C and 19.6 °C and averaged 13.7 °C. There was 0.2 mm of rain during 0.3 hours. There was 0.3 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
May 14 » Five unarmed civilians are killed in the Ådalen shootings, as the Swedish military is called in to deal with protesting workers.
August 24 » Resignation of the United Kingdom's Second Labour Government. Formation of the UK National Government.
October 21 » A secret society in the Imperial Japanese Army launches an abortive coup d'état attempt.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
Day of death January 17, 1975
The temperature on January 17, 1975 was between 3.5 °C and 8.5 °C and averaged 6.3 °C. There was 11.8 mm of rain during 3.3 hours. The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
April 2 » Vietnam War: Thousands of civilian refugees flee from Quảng Ngãi Province in front of advancing North Vietnamese troops.
April 4 » Microsoft is founded as a partnership between Bill Gates and Paul Allen in Albuquerque, New Mexico.
July 17 » Apollo–Soyuz Test Project: An American Apollo and a Soviet Soyuz spacecraft dock with each other in orbit marking the first such link-up between spacecraft from the two nations.
July 30 » Jimmy Hoffa disappears from the parking lot of the Machus Red Fox restaurant in Bloomfield Hills, Michigan, a suburb of Detroit, at about 2:30p.m. He is never seen or heard from again.
September 4 » The Sinai Interim Agreement relating to the Arab–Israeli conflict is signed.
September 24 » Southwest Face expedition members become the first persons to reach the summit of Mount Everest by any of its faces, instead of using a ridge route.
When copying data from this family tree, please include a reference to the origin: John Bart, "Family tree Denneman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-denneman/I1271.php : accessed February 15, 2026), "Martinus Henricus Cornelis Kolster (1901-1975)".
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