March 1 » Henri Becquerel discovers radioactive decay.
May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
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.
August 17 » Bridget Driscoll became the first recorded case of a pedestrian killed in a collision with a motor car in the United Kingdom.
December 17 » Pittsburgh, Pennsylvania's Schenley Park Casino, which was the first multi-purpose arena with the technology to create an artificial ice surface in North America, is destroyed in a fire.
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 15 » The decimalisation of British coinage is completed on Decimal Day.
May 20 » In the Chuknagar massacre, Pakistani forces massacre thousands, mostly Bengali Hindus.
June 7 » The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
October 21 » A gas explosion kills 22 people at a shopping centre near Glasgow, Scotland.
October 29 » In Macon, Georgia, guitarist Duane Allman is killed in a motorcycle accident.
November 15 » Intel releases the world's first commercial single-chip microprocessor, the 4004.
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 11, 2026), "Egbert van der Velde (1896-1971)".
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