February 24 » Revolution breaks out in Baire, a town near Santiago de Cuba, beginning the Cuban War of Independence, that ends with the Spanish–American War in 1898.
March 22 » Before the Société pour L'Encouragement à l'Industrie, brothers Auguste and Louis Lumière demonstrate movie film technology publicly for the first time.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
October 8 » Korean Empress Myeongseong is assassinated by Japanese infiltrators.
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 May 12, 1970
The temperature on May 12, 1970 was between 10.8 °C and 20.1 °C and averaged 14.7 °C. There was 9.2 hours of sunshine (59%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 26 » The Convention Establishing the World Intellectual Property Organization enters into force.
August 9 » LANSA Flight 502 crashes after takeoff from Alejandro Velasco Astete International Airport in Cusco, Peru, killing 99 of the 100 people on board, as well as two people on the ground.
September 9 » A British airliner is hijacked by the Popular Front for the Liberation of Palestine and flown to Dawson's Field in Jordan.
October 12 » Vietnam War: Vietnamization continues as President Nixon announces that the United States will withdraw 40,000 more troops before Christmas.
November 1 » Club Cinq-Sept fire in Saint-Laurent-du-Pont, France kills 146 young people.
When copying data from this family tree, please include a reference to the origin: Ronald van 't Hoff, "Family tree Van 't Hoff - Zondag - Bosch - de Zwaan - vd Kolk - Westhuis - Plomp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-t-hoff/I22158.php : accessed March 13, 2026), "Pieternella Wilhelmina Otten (1895-1970)".
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