March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
October 4 » Horace Rawlins wins the first U.S. Open Men's Golf Championship.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 27 » At the Swedish–Norwegian Club in Paris, Alfred Nobel signs his last will and testament, setting aside his estate to establish the Nobel Prize after he dies.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of death July 13, 1961
The temperature on July 13, 1961 was between 10.7 °C and 18.5 °C and averaged 14.5 °C. There was 21.4 mm of rain during 5.1 hours. There was 1.1 hours of sunshine (7%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 31 » Project Mercury: Mercury-Redstone 2: Ham the Chimp travels into outer space.
February 14 » Discovery of the chemical elements: Element 103, Lawrencium, is first synthesized at the University of California.
May 4 » Malcolm Ross and Victor Prather attain a new altitude record for manned balloon flight ascending in the Strato-Lab V open gondola to 113,740 feet (34.67km).
June 4 » Cold War: In the Vienna summit, the Soviet premier Nikita Khrushchev sparks the Berlin Crisis by threatening to sign a separate peace treaty with East Germany and ending American, British and French access to East Berlin.
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
September 10 » In the Italian Grand Prix, a crash causes the death of German Formula One driver Wolfgang von Trips and 13 spectators who are hit by his Ferrari, the deadliest accident in F1 history.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I2165.php : accessed February 5, 2026), "Jacques Cornelius Norbertus Petrus Josephus van Hoek (1895-1961)".
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