April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
July 1 » Canada and Bermuda are linked by telegraph cable.
July 2 » The U.S. Congress passes the Sherman Antitrust Act.
July 3 » Idaho is admitted as the 43rd U.S. state.
July 27 » Vincent van Gogh shoots himself and dies two days later.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of marriage October 16, 1915
The temperature on October 16, 1915 was between 3.4 °C and 15.6 °C and averaged 10.0 °C. There was 2.3 hours of sunshine (22%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
January 31 » World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
May 7 » The Republic of China accedes to 13 of the 21 Demands, extending the Empire of Japan's control over Manchuria and the Chinese economy.
July 5 » The Liberty Bell leaves Philadelphia by special train on its way to the Panama–Pacific International Exposition. This is the last trip outside Philadelphia that the custodians of the bell intend to permit.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
Day of death September 22, 1921
The temperature on September 22, 1921 was between 6.6 °C and 21.7 °C and averaged 13.6 °C. There was 0.1 mm of rain. There was 6.8 hours of sunshine (55%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
February 21 » Rezā Shāh takes control of Tehran during a successful coup.
March 1 » The Australian cricket team captained by Warwick Armstrong becomes the first team to complete a whitewash of The Ashes, something that would not be repeated for 86 years.
July 11 » Former president of the United States William Howard Taft is sworn in as 10th chief justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
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/I188217.php : accessed October 25, 2026), "Aldert Hietkamp (1890-1921)".
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