The temperature on June 25, 1889 was about 22.2 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 51%. 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.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
July 11 » Tijuana, Mexico, is founded.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
Day of death July 15, 1961
The temperature on July 15, 1961 was between 11.8 °C and 17.5 °C and averaged 14.1 °C. There was 6.7 mm of rain during 3.1 hours. There was 1.3 hours of sunshine (8%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
March 1 » United States President John F. Kennedy establishes the Peace Corps.
April 25 » Robert Noyce is granted a patent for an integrated circuit.
May 31 » The South African Constitution of 1961 becomes effective, thus creating the Republic of South Africa, which remains outside the Commonwealth of Nations until 1 June 1994, when South Africa is returned to Commonwealth membership.
October 20 » The Soviet Union performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf-class submarine.
October 31 » In the Soviet Union, Joseph Stalin's body is removed from the Lenin's Mausoleum, also known as the Lenin Tomb.
November 11 » Thirteen Italian Air Force servicemen, deployed to the Congo as a part of the UN peacekeeping force, are massacred by a mob in Kindu.
When copying data from this family tree, please include a reference to the origin: J.A.M.G. Ronnen, "Stamboom familie Ronnen en aanverwanten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-familie-ronnen-en-aanverwanten/I137803.php : accessed June 15, 2024), "Maria Catharina Steevens (1889-1961)".
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