The temperature on October 30, 1911 was between 2.8 °C and 11.9 °C and averaged 8.6 °C. There was 7.4 mm of rain. The average windspeed was 6 Bft (strong wind) and was prevailing from the south. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of marriage April 29, 1943
The temperature on April 29, 1943 was between 0.2 °C and 13.9 °C and averaged 8.1 °C. There was 11.9 hours of sunshine (81%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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.
February 19 » World War II: Battle of Kasserine Pass in Tunisia begins.
March 3 » World War II: In London, 173 people are killed in a crush while trying to enter an air-raid shelter at Bethnal Green tube station.
March 4 » World War II: The Battle of Fardykambos, one of the first major battles between the Greek Resistance and the occupying Royal Italian Army, begins. It ends on 6 March with the surrender of an entire Italian battalion and the liberation of the town of Grevena.
June 25 » The left-wing German Jewish exile Arthur Goldstein is murdered in Auschwitz.
July 5 » World War II: German forces begin a massive offensive against the Soviet Union at the Battle of Kursk, also known as Operation Citadel.
July 28 » World War II: Operation Gomorrah: The Royal Air Force bombs Hamburg, Germany causing a firestorm that kills 42,000 German civilians.
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/I119157.php : accessed February 13, 2026), "Johannes Merkus (1911-)".
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