The temperature on April 19, 1912 was between 0.9 °C and 18.5 °C and averaged 10.3 °C. There was 11.1 hours of sunshine (79%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 11 » Immigrant textile workers in Lawrence, Massachusetts, go on strike when wages are reduced in response to a mandated shortening of the work week.
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
April 17 » Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
October 7 » The Helsinki Stock Exchange sees its first transaction.
When copying data from this family tree, please include a reference to the origin: J. Broere, "Family tree Broere", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_broere/I7729.php : accessed June 22, 2024), "Wilhelmina Helena Heemskerk (1888-????)".
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