In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
July 9 » Daniel Hale Williams, American heart surgeon, performs the first successful open-heart surgery in United States without anesthesia.
July 11 » A revolution led by the liberal general and politician José Santos Zelaya takes over state power in Nicaragua.
July 22 » Katharine Lee Bates writes "America the Beautiful" after admiring the view from the top of Pikes Peak near Colorado Springs, Colorado.
August 15 » Ibadan area becomes a British Protectorate after a treaty signed by Fijabi, the Baale of Ibadan with the British acting Governor of Lagos, George C. Denton.
September 16 » Settlers make a land run for prime land in the Cherokee Strip in Oklahoma.
September 20 » Charles Duryea and his brother road-test the first American-made gasoline-powered automobile.
Day of marriage August 25, 1921
The temperature on August 25, 1921 was between 12.6 °C and 19.3 °C and averaged 15.9 °C. There was 0.3 mm of rain. There was 0.6 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
February 21 » Rezā Shāh takes control of Tehran during a successful coup.
February 27 » The International Working Union of Socialist Parties is founded in Vienna.
March 18 » The Kronstadt rebellion is suppressed by the Red Army.
April 2 » The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established.
October 19 » The Portuguese Prime Minister and several officials are murdered in the Bloody Night coup.
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.
February 9 » The Soyuz 17 Soviet spacecraft returns to Earth.
August 20 » Viking program: NASA launches the Viking 1 planetary probe toward Mars.
August 23 » The Pontiac Silverdome opens in Pontiac, Michigan, 30 miles (48km) northwest of Detroit, Michigan
October 22 » The Soviet unmanned space mission Venera 9 lands on Venus.
November 22 » Juan Carlos is declared King of Spain following the death of Francisco Franco.
December 2 » Laotian Civil War: The Pathet Lao seizes the Laotian capital of Vientiane, forces the abdication of King Sisavang Vatthana, and proclaims the Lao People's Democratic Republic.
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/I3004.php : accessed February 13, 2026), "Jan Bak (1893-1975)".
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