The temperature on February 20, 1911 was between 0.5 °C and 7.1 °C and averaged 3.1 °C. There was 2.7 mm of rain. There was 2.2 hours of sunshine (21%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
Day of marriage April 8, 1943
The temperature on April 8, 1943 was between 1.0 °C and 9.1 °C and averaged 4.6 °C. There was 2.6 mm of rain during 3.4 hours. There was 4.5 hours of sunshine (34%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the northwest. 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.
June 12 » The Holocaust: Germany liquidates the Jewish Ghetto in Brzeżany, Poland (now Berezhany, Ukraine). Around 1,180 Jews are led to the city's old Jewish graveyard and shot.
July 19 » World War II: Rome is heavily bombed by more than 500 Allied aircraft, inflicting thousands of casualties.
September 16 » World War II: The German Tenth Army reports that it can no longer contain the Allied bridgehead around Salerno.
October 22 » World War II: In the Second firestorm raid on Germany, the RAF conducts an air raid on the town of Kassel, killing 10,000 and rendering 150,000 homeless.
November 26 » World War II: HMT Rohna is sunk by the Luftwaffe in an air attack in the Mediterranean north of Béjaïa, Algeria.
December 13 » World War II: The Massacre of Kalavryta by German occupying forces in Greece.
When copying data from this family tree, please include a reference to the origin: C.M.J. Peterse, "Family tree Peterse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-peterse/I2270.php : accessed February 7, 2026), "Cornelis Johannes Christiaan Koppe (1911-)".
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