February 23 » Émile Zola is imprisoned in France after writing J'Accuse…!, a letter accusing the French government of antisemitism and wrongfully imprisoning Captain Alfred Dreyfus.
April 20 » U.S. President William McKinley signed a joint resolution to Congress for declaration of war against Spain, beginning the Spanish–American War.
June 17 » The United States Navy Hospital Corps is established.
August 28 » Caleb Bradham's beverage "Brad's Drink" is renamed "Pepsi-Cola".
August 29 » The Goodyear tire company is founded.
September 13 » Hannibal Goodwin patents celluloid photographic film.
Day of marriage November 30, 1923
The temperature on November 30, 1923 was between -9.0 °C and 4.8 °C and averaged -2.5 °C. There was 0.2 mm of rain. There was 3.1 hours of sunshine (38%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 10 » Texas Tech University is founded as Texas Technological College in Lubbock, Texas
February 16 » Howard Carter unseals the burial chamber of Pharaoh Tutankhamun.
April 15 » Insulin becomes generally available for use by people with diabetes.
June 18 » Checker Taxi puts its first taxi on the streets.
October 13 » Ankara becomes the capital of Turkey.
October 15 » The German Rentenmark is introduced in Germany to counter hyperinflation in the Weimar Republic.
Day of death February 7, 1975
The temperature on February 7, 1975 was between -2.6 °C and 2.8 °C and averaged -0.6 °C. There was -0.1 mm of rain. There was 6.7 hours of sunshine (71%). The partly clouded was. The average windspeed was 2 Bft (weak wind) 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.
April 17 » The Cambodian Civil War ends. The Khmer Rouge captures the capital Phnom Penh and Cambodian government forces surrender.
April 29 » Vietnam War: Operation Frequent Wind: The U.S. begins to evacuate U.S. citizens from Saigon before an expected North Vietnamese takeover. U.S. involvement in the war comes to an end.
June 5 » The Suez Canal opens for the first time since the Six-Day War.
August 14 » The Rocky Horror Picture Show, the longest-running release in film history, opens in London.
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.
October 1 » Muhammad Ali defeats Joe Frazier in a boxing match in Manila, Philippines.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I10643.php : accessed February 15, 2026), "Jurjen Haaijer (1898-1975)".
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