The temperature on March 20, 1889 was about 7.9 °C. There was 1 mm of rain. The air pressure was 16 kgf/m2 and came mainly from the south. The airpressure was 74 cm mercury. The atmospheric humidity was 85%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
February 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
Day of death April 11, 1964
The temperature on April 11, 1964 was between 2.0 °C and 14.4 °C and averaged 8.1 °C. There was 6.2 hours of sunshine (46%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 17 » Gabonese president Léon M'ba is toppled by a coup and his rival, Jean-Hilaire Aubame, is installed in his place.
April 8 » The Gemini 1 test flight is conducted.
July 2 » Civil rights movement: U.S. President Lyndon B. Johnson signs the Civil Rights Act of 1964 meant to prohibit segregation in public places.
August 4 » Civil rights movement: Civil rights workers Michael Schwerner, Andrew Goodman and James Chaney are found dead in Mississippi after disappearing on June 21.
September 27 » The British TSR-2 aircraft XR219 makes its maiden flight.
October 16 » China detonates its first nuclear weapon.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I9264.php : accessed September 23, 2026), "Leonard van Landeghem (1889-1964)".
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