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.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
January 13 » The National Geographic Society is founded in Washington, D.C.
March 15 » Start of the Anglo-Tibetan War of 1888.
May 12 » In Southeast Asia, the North Borneo Chartered Company's territories become the British protectorate of North Borneo.
June 29 » George Edward Gouraud records Handel's Israel in Egypt onto a phonograph cylinder, thought for many years to be the oldest known recording of music.
September 4 » George Eastman registers the trademark Kodak and receives a patent for his camera that uses roll film.
October 21 » Foundation of the Swiss Social Democratic Party.
Day of marriage July 31, 1919
The temperature on July 31, 1919 was between 10.8 °C and 18.5 °C and averaged 14.2 °C. There was 4.0 hours of sunshine (26%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. 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.
February 21 » German socialist Kurt Eisner is assassinated. His death results in the establishment of the Bavarian Soviet Republic and parliament and government fleeing Munich, Germany.
May 1 » German troops enter Munich to suppress the Bavarian Soviet Republic.
May 4 » May Fourth Movement: Student demonstrations take place in Tiananmen Square in Beijing, China, protesting the Treaty of Versailles, which transferred Chinese territory to Japan.
June 28 » The Treaty of Versailles is signed, ending the state of war between Germany and the Allies of World War I.
August 11 » Germany's Weimar Constitution is signed into law.
September 18 » The Netherlands gives women the right to vote.
Day of death April 9, 1975
The temperature on April 9, 1975 was between -0.3 °C and 8.3 °C and averaged 3.9 °C. There was 4.2 mm of rain during 2.0 hours. There was 3.4 hours of sunshine (25%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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.
February 5 » Riots break in Lima, Peru after the police forces go on strike the day before. The uprising (locally known as the Limazo) is bloodily suppressed by the military dictatorship.
April 28 » General Cao Văn Viên, chief of the South Vietnamese military, departs for the US as the North Vietnamese Army closed in on victory.
June 25 » Prime Minister Indira Gandhi declares a state of internal emergency in India.
July 5 » Arthur Ashe becomes the first black man to win the Wimbledon singles title.
November 28 » East Timor declares its independence from Portugal.
December 26 » Tu-144, the world's first commercial supersonic aircraft, surpassing Mach2, went into service.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I8829.php : accessed February 17, 2026), "Pieter den Hartigh (1888-1975)".
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