January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
March 1 » Henri Becquerel discovers radioactive decay.
March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
July 28 » The city of Miami, Florida is incorporated.
Day of death May 10, 1971
The temperature on May 10, 1971 was between 5.5 °C and 22.2 °C and averaged 14.2 °C. There was -0.1 mm of rain. There was 11.9 hours of sunshine (77%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 26 » U.N. Secretary-General U Thant signs United Nations proclamation of the vernal equinox as Earth Day.
April 10 » Ping-pong diplomacy: In an attempt to thaw relations with the United States, China hosts the U.S. table tennis team for a week-long visit.
April 23 » Bangladesh Liberation War: The Pakistan Army and Razakars massacre approximately 3,000 Hindu emigrants in the Jathibhanga area of East Pakistan (now Bangladesh).
May 30 » Mariner program: Mariner 9 is launched to map 70% of the surface, and to study temporal changes in the atmosphere and surface, of Mars.
November 15 » Intel releases the world's first commercial single-chip microprocessor, the 4004.
November 28 » Wasfi al-Tal, Prime Minister of Jordan, is assassinated by the Black September unit of the Palestine Liberation Organization.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I81867.php : accessed October 8, 2026), "Egbert van der Velde (1896-1971)".
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