February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
February 27 » Second Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronjé at the Battle of Paardeberg.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
October 9 » The Cook Islands become a territory of the United Kingdom.
October 19 » Max Planck discovers Planck's law of black-body radiation.
October 25 » The United Kingdom annexes the Transvaal.
Day of death May 11, 1943
The temperature on May 11, 1943 was between 8.3 °C and 13.8 °C and averaged 10.8 °C. There was 1.8 mm of rain during 0.5 hours. There was 9.5 hours of sunshine (61%). The average windspeed was 4 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.
August 2 » The Holocaust: Jewish prisoners stage a revolt at Treblinka, one of the deadliest of Nazi death camps where approximately 900,000 persons were murdered in less than 18 months.
August 23 » World War II: Kharkiv is liberated by the Soviet Union after the Battle of Kursk.
October 8 » World War II: Around 30 civilians are executed by Friedrich Schubert's paramilitary group in Kallikratis, Crete.
October 19 » Streptomycin, the first antibiotic remedy for tuberculosis, is isolated by researchers at Rutgers University.
November 23 » World War II: The Deutsche Opernhaus on Bismarckstraße in the Berlin neighborhood of Charlottenburg is destroyed. It will eventually be rebuilt in 1961 and be called the Deutsche Oper Berlin.
December 15 » World War II: The Battle of Arawe begins during the New Britain campaign.
When copying data from this family tree, please include a reference to the origin: Jan Voorhaar, "Family tree Voorhaar", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-voorhaar/I5897.php : accessed June 14, 2024), "Jan Koppel (1867-1943)".
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