The temperature on May 4, 1917 was between 6.4 °C and 24.3 °C and averaged 16.0 °C. There was 12.0 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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 17 » The United States pays Denmark $25 million for the Virgin Islands.
January 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
March 15 » Tsar Nicholas II of Russia abdicates the Russian throne ending the 304-year Romanov dynasty.
May 21 » The Great Atlanta fire of 1917 causes $5.5million in damages, destroying some 300 acres including 2,000 homes, businesses and churches, displacing about 10,000 people but leading to only one fatality (due to heart attack).
July 20 » World War I: The Corfu Declaration, which leads to the creation of the post-war Kingdom of Yugoslavia, is signed by the Yugoslav Committee and Kingdom of Serbia.
November 25 » World War I: German forces defeat Portuguese army of about 1,200 at Negomano on the border of modern-day Mozambique and Tanzania.
Day of death August 18, 1945
The temperature on August 18, 1945 was between 12.1 °C and 21.5 °C and averaged 16.5 °C. There was 0.1 mm of rain. There was 5.8 hours of sunshine (40%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
January 3 » World War II: Admiral Chester W. Nimitz is placed in command of all U.S. Naval forces in preparation for planned assaults against Iwo Jima and Okinawa in Japan.
January 17 » World War II: The Vistula–Oder Offensive forces German troops out of Warsaw.
February 21 » World War II: During the Battle of Iwo Jima, Japanese kamikaze planes sink the escort carrier USSBismarck Sea and damage the USSSaratoga.
March 17 » The Ludendorff Bridge in Remagen, Germany, collapses, ten days after its capture.
May 2 » World War II: A death march from Dachau to the Austrian border is halted by the segregated, all-Nisei 522nd Field Artillery Battalion of the U.S. Army in southern Bavaria, saving several hundred prisoners.
August 9 » World War II: Nagasaki is devastated when an atomic bomb, Fat Man, is dropped by the United States B-29 Bockscar. Thirty-five thousand people are killed outright, including 23,200–28,200 Japanese war workers, 2,000 Korean forced workers, and 150 Japanese soldiers.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I139755.php : accessed February 21, 2026), "Jan Wiersma (1917-1945)".
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