The temperature on May 21, 1937 was between 8.9 °C and 22.1 °C and averaged 15.9 °C. There was 5.6 hours of sunshine (35%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 23 » The trial of the anti-Soviet Trotskyist center sees seventeen mid-level Communists accused of sympathizing with Leon Trotsky and plotting to overthrow Joseph Stalin's regime.
February 11 » The Flint sit-down strike ends when General Motors recognizes the United Auto Workers trade union.
February 21 » The League of Nations bans foreign national "volunteers" in the Spanish Civil War.
July 5 » Spam, the luncheon meat, is introduced into the market by the Hormel Foods Corporation.
August 1 » Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor.
August 28 » Toyota Motors becomes an independent company.
When copying data from this family tree, please include a reference to the origin: Willem Vlietstra, "Family tree families Vlietstra, Piebes en aangetrouwde families", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-vlietstra-piebes/I1072259731.php : accessed May 25, 2024), "Niet publiceren".
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