January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
January 28 » Walter Arnold of East Peckham, Kent, becomes the first person to be convicted of speeding. He was fined one shilling, plus costs, for speeding at 8mph (13km/h), thereby exceeding the contemporary speed limit of 2mph (3.2km/h).
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
May 26 » Nicholas II becomes the last Tsar of Imperial Russia.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
November 1 » A picture showing the bare breasts of a woman appears in National Geographic magazine for the first time.
Day of death March 31, 1971
The temperature on March 31, 1971 was between -0.2 °C and 8.0 °C and averaged 4.2 °C. There was -0.1 mm of rain. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Roberto Moraes Rosa Petroucic, "Genealogy Petroucic", database, Genealogy Online (https://www.genealogieonline.nl/genealogy-petroucic/I318264.php : accessed June 5, 2024), "Ana Amélia de Queiroz (1896-1971)".
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