The temperature on January 13, 1915 was between -1.4 °C and 9.7 °C and averaged 3.3 °C. There was 5.9 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
March 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
May 7 » World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many former pro-Germans in the United States against the German Empire.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
May 23 » World War I: Italy joins the Allies, fulfilling its part of the Treaty of London.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
Day of marriage April 22, 1942
The temperature on April 22, 1942 was between 2.9 °C and 15.5 °C and averaged 9.6 °C. There was 11.7 hours of sunshine (82%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 13 » Henry Ford patents a plastic automobile, which is 30% lighter than a regular car.
May 3 » World War II: Japanese naval troops invade Tulagi Island in the Solomon Islands during the first part of Operation Mo that results in the Battle of the Coral Sea between Japanese forces and forces from the United States and Australia.
August 16 » World War II: A naval L-class blimp drifts in from the Pacific and eventually crashes in Daly City, California. The two-man crew cannot be found.
November 12 » World War II: Naval Battle of Guadalcanal between Japanese and American forces begins near Guadalcanal. The battle lasts for three days and ends with an American victory.
November 13 » World War II: Naval Battle of Guadalcanal: U.S. and Japanese ships engage in an intense, close-quarters surface naval engagement during the Guadalcanal Campaign.
November 15 » World War II: The Battle of Guadalcanal ends in a decisive Allied victory.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I891.php : accessed September 26, 2026), "WILLEMPJE ZWAAN (1915-)".
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