The temperature on May 22, 1958 was between 4.7 °C and 17.1 °C and averaged 11.2 °C. There was 0.9 mm of rain during 1.1 hours. There was 6.9 hours of sunshine (43%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
March 17 » The United States launches the first solar-powered satellite.
April 14 » The Soviet satellite Sputnik 2 falls from orbit after a mission duration of 162 days. This was the first spacecraft to carry a living animal, a female dog named Laika, who likely lived only a few hours.
April 26 » Final run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City after 68years, the first U.S. passenger train to use electric locomotives.
September 14 » The first two German post-war rockets, designed by the German engineer Ernst Mohr, reach the upper atmosphere.
December 9 » The John Birch Society is founded in the United States.
December 14 » The 3rd Soviet Antarctic Expedition becomes the first to reach the southern pole of inaccessibility.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I65895.php : accessed August 8, 2025), "Zijlstra (1958-1958)".
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