The temperature on February 22, 1864 was about -1.4 °C. The air pressure was 0.5 kgf/m2 and came mainly from the west-northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 86%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
April 18 » Battle of Dybbøl: A Prussian-Austrian army defeats Denmark and gains control of Schleswig. Denmark surrenders the province in the following peace settlement.
April 25 » American Civil War: The Battle of Marks' Mills.
May 7 » The world's oldest surviving clipper ship, the City of Adelaide is launched by William Pile, Hay and Co. in Sunderland, England, for transporting passengers and goods between Britain and Australia.
May 9 » Second Schleswig War: The Danish navy defeats the Austrian and Prussian fleets in the Battle of Heligoland.
May 22 » American Civil War: After ten weeks, the Union Army's Red River Campaign ends in failure.
December 10 » American Civil War: Sherman's March to the Sea: Major General William Tecumseh Sherman's Union Army troops reach the outer Confederate defenses of Savannah, Georgia.
Day of death May 31, 1937
The temperature on May 31, 1937 was between 8.1 °C and 20.0 °C and averaged 15.2 °C. There was 3.0 mm of rain during 0.9 hours. There was 6.7 hours of sunshine (41%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
February 19 » Yekatit 12: During a public ceremony at the Viceregal Palace (the former Imperial residence) in Addis Ababa, Ethiopia, two Ethiopian nationalists of Eritrean origin attempt to kill viceroy Rodolfo Graziani with a number of grenades.
March 21 » Ponce massacre: Nineteen people in Ponce, Puerto Rico are gunned down by police acting on orders of the US-appointed Governor, Blanton C. Winship.
May 6 » Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed.
September 5 » Spanish Civil War: Llanes falls to the Nationalists following a one-day siege.
September 22 » Spanish Civil War: Peña Blanca is taken, ending the Battle of El Mazuco.
December 21 » Snow White and the Seven Dwarfs, the world's first full-length animated feature, premieres at the Carthay Circle Theatre.
When copying data from this family tree, please include a reference to the origin: Jaap van der Werff, "Family tree Van der Werff / Kooistra", database, Genealogy Online (https://www.genealogieonline.nl/van-der-werff-stamboom/I528486.php : accessed February 20, 2026), "Willempje de Leeuw (1864-1937)".
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