The temperature on February 18, 1889 was about 8.6 °C. The air pressure was 10 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 90%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 22 » Columbia Phonograph is formed in Washington, D.C.
March 31 » The Eiffel Tower is officially opened.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
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 29 » Hyde Park and several other Illinois townships vote to be annexed by Chicago, forming the largest United States city in area and second largest in population at the time.
Day of marriage April 16, 1912
The temperature on April 16, 1912 was between 1.2 °C and 13.3 °C and averaged 8.6 °C. There was 12.1 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 4 » The Scout Association is incorporated throughout the British Empire by royal charter.
January 17 » British polar explorer Captain Robert Falcon Scott reaches the South Pole, one month after Roald Amundsen.
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
October 3 » U.S. forces defeat Nicaraguan rebels at the Battle of Coyotepe Hill.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of death December 13, 1969
The temperature on December 13, 1969 was between -0.8 °C and 0.3 °C and averaged -0.3 °C. There was 0.2 mm of rain. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
March 13 » Apollo 9 returns safely to Earth after testing the Lunar Module.
March 17 » Golda Meir becomes the first female Prime Minister of Israel.
April 1 » The Hawker Siddeley Harrier, the first operational fighter aircraft with Vertical/Short Takeoff and Landing capabilities, enters service with the Royal Air Force.
May 9 » Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
May 26 » Apollo program: Apollo 10 returns to Earth after a successful eight-day test of all the components needed for the forthcoming first manned moon landing.
September 25 » The charter establishing the Organisation of Islamic Cooperation is signed.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I12642.php : accessed January 22, 2026), "Helen Agnes Dreyer (1889-1969)".
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