The temperature on April 5, 1879 was about 12.3 °C. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 56%. Source: KNMI
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
June 28 » The U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
Day of death June 21, 1945
The temperature on June 21, 1945 was between 15.0 °C and 27.7 °C and averaged 19.8 °C. There was 0.1 mm of rain. There was 13.9 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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).
April 5 » Cold War: Yugoslav leader Josip Broz Tito signs an agreement with the Soviet Union to allow "temporary entry of Soviet troops into Yugoslav territory".
April 8 » World War II: After an air raid accidentally destroys a train carrying about 4,000 Nazi concentration camp internees in Prussian Hanover, the survivors are massacred by Nazis.
May 5 » World War II: Battle of Castle Itter, the only battle in which American and German troops fought cooperatively.
May 23 » World War II: Heinrich Himmler, head of the Schutzstaffel, commits suicide while in Allied custody.
July 16 » Manhattan Project: The Atomic Age begins when the United States successfully detonates a plutonium-based test nuclear weapon near Alamogordo, New Mexico.
August 21 » Physicist Harry Daghlian is fatally irradiated in a criticality accident during an experiment with the Demon core at Los Alamos National Laboratory.
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/I160120.php : accessed February 16, 2026), "Johannes Hamersma (1879-1945)".
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