The temperature on December 19, 1909 was between -1.3 °C and 3.6 °C and averaged 1.2 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 23 » RMSRepublic, a passenger ship of the White Star Line, becomes the first ship to use the CQD distress signal after colliding with another ship, the SS Florida, off the Massachusetts coastline, an event that kills six people. The Republic sinks the next day.
January 28 » United States troops leave Cuba with the exception of Guantanamo Bay Naval Base after being there since the Spanish–American War.
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
March 4 » U.S. President William Taft used what became known as a Saxbe fix, a mechanism to avoid the restriction of the U.S. Constitution's Ineligibility Clause, to appoint Philander C. Knox as U.S. Secretary of State.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
Day of death August 11, 1971
The temperature on August 11, 1971 was between 13.7 °C and 16.1 °C and averaged 14.9 °C. There was 0.5 mm of rain during 1.0 hours. There was 1.3 hours of sunshine (9%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 25 » Charles Manson and three female "Family" members are found guilty of the 1969 Tate–LaBianca murders.
January 25 » Idi Amin leads a coup deposing Milton Obote and becomes Uganda's president.
February 2 » Idi Amin replaces President Milton Obote as leader of Uganda.
July 30 » Apollo program: Apollo 15 Mission: David Scott and James Irwin on the Apollo Lunar Module Falcon land on the Moon with the first Lunar Rover.
November 22 » In Britain's worst mountaineering tragedy, the Cairngorm Plateau Disaster, five children and one of their leaders are found dead from exposure in the Scottish mountains.
December 7 » The Battle of Sylhet is fought between the Pakistani military and the Mukti Bahini.
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/I116182.php : accessed October 9, 2026), "Korneliske Helfrich (1909-1971)".
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