January 1 » The first American college football bowl game, the Rose Bowl between Michigan and Stanford, is held in Pasadena, California.
April 2 » "Electric Theatre", the first full-time movie theater in the United States, opens in Los Angeles.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
Day of marriage June 4, 1931
The temperature on June 4, 1931 was between 9.1 °C and 19.5 °C and averaged 13.4 °C. There was 4.2 hours of sunshine (25%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. 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.
January 21 » Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 19 » Gambling is legalized in Nevada.
March 26 » Ho Chi Minh Communist Youth Union is founded in Vietnam.
August 24 » France and the Soviet Union sign a neutrality pact.
September 30 » Start of "Die Voortrekkers" youth movement for Afrikaners in Bloemfontein, South Africa.
Day of death August 19, 1975
The temperature on August 19, 1975 was between 9.4 °C and 23.8 °C and averaged 17.3 °C. There was 0.4 mm of rain during 0.5 hours. There was 6.1 hours of sunshine (42%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. 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 25 » As North Vietnamese forces close in on the South Vietnamese capital Saigon, the Australian Embassy is closed and evacuated, almost ten years to the day since the first Australian troop commitment to South Vietnam.
June 25 » Mozambique achieves independence from Portugal.
July 12 » São Tomé and Príncipe declare independence from Portugal.
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 10 » Papua New Guinea joins the United Nations.
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/I5864.php : accessed February 1, 2026), "Jan Wagenaar (1902-1975)".
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