The temperature on February 1, 1929 was between -2.1 °C and 1.6 °C and averaged 0.1 °C. There was 0.3 hours of sunshine (3%). The average windspeed was 6 Bft (strong wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
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.
May 1 » The 7.2 Mw Kopet Dag earthquake shakes the Iran–Turkmenistan border region with a maximum Mercalli intensity of IX (Violent), killing up to 3,800 and injuring 1,121.
June 7 » The Lateran Treaty is ratified, bringing Vatican City into existence.
June 17 » The town of Murchison, New Zealand Is rocked by a 7.8 magnitude earthquake killing 17. At the time it was New Zealand's worst natural disaster.
September 7 » Steamer Kuru capsizes and sinks on Lake Näsijärvi near Tampere in Finland. One hundred thirty-six lives are lost.
October 18 » The Judicial Committee of the Privy Council overrules the Supreme Court of Canada in Edwards v. Canada when it declares that women are considered "Persons" under Canadian law.
December 19 » The Indian National Congress promulgates the Purna Swaraj (the Declaration of the Independence of India).
Day of marriage September 3, 1962
The temperature on September 3, 1962 was between 11.4 °C and 27.0 °C and averaged 18.6 °C. There was 7.6 hours of sunshine (56%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 26 » Ranger 3 is launched to study the Moon. The space probe later misses the moon by 22,000 miles (35,400km).
June 2 » During the FIFA World Cup, police had to intervene multiple times in fights between Chilean and Italian players in one of the most violent games in football history.
July 11 » First transatlantic satellite television transmission.
August 27 » The Mariner 2 unmanned space mission is launched to Venus by NASA.
December 13 » NASA launches Relay 1, the first active repeater communications satellite in orbit.
December 25 » The Soviet Union conducts its final above-ground nuclear weapon test, in anticipation of the 1963 Partial Nuclear Test Ban Treaty.
Day of death February 2, 1975
The temperature on February 2, 1975 was between 5.3 °C and 12.0 °C and averaged 8.0 °C. There was -0.1 mm of rain. There was 3.9 hours of sunshine (43%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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.
March 11 » Vietnam War: North Vietnamese and Viet Cong guerrilla forces establish control over Buôn Ma Thuột commune from the South Vietnamese army.
April 29 » Vietnam War: The North Vietnamese army completes its capture of all parts of South Vietnamese-held Trường Sa Islands.
June 20 » The film Jaws is released in the United States, becoming the highest-grossing film of that time and starting the trend of films known as "summer blockbusters".
July 12 » São Tomé and Príncipe declare independence from Portugal.
August 27 » The Governor of Portuguese Timor abandons its capital, Dili, and flees to Atauro Island, leaving control to a rebel group.
September 16 » The first prototype of the Mikoyan MiG-31 interceptor makes its maiden flight.
When copying data from this family tree, please include a reference to the origin: Michiel van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-loon/I12.php : accessed February 4, 2026), "Hendrik van der Ploeg (1929-1975)".
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