The temperature on May 21, 1916 was between 8.7 °C and 24.1 °C and averaged 16.9 °C. There was 12.1 hours of sunshine (76%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 9 » World War I: The Battle of Gallipoli concludes with an Ottoman Empire victory when the last Allied forces are evacuated from the peninsula.
May 31 » World War I: Battle of Jutland: The British Grand Fleet engages the High Seas Fleet in the largest naval battle of the war, which proves indecisive.
June 5 » Louis Brandeis is sworn in as a Justice of the United States Supreme Court; he is the first American Jew to hold such a position.
June 5 » World War I: The Arab Revolt against the Ottoman Empire breaks out.
August 28 » World War I: Germany declares war on Romania.
September 15 » World War I: Tanks are used for the first time in battle, at the Battle of the Somme.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I149675.php : accessed February 16, 2026), "Maria Helena Hendrina Walenkamp (1916-)".
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