The temperature on September 21, 1889 was about 9.5 °C. There was 4 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 73%. 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.
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.
July 8 » The first issue of The Wall Street Journal is published.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
Day of death March 11, 1971
The temperature on March 11, 1971 was between 0.1 °C and 6.3 °C and averaged 2.8 °C. There was 1.5 mm of rain during 2.6 hours. There was 5.3 hours of sunshine (46%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 20 » The United States Emergency Broadcast System is accidentally activated in an erroneous national alert.
August 9 » The Troubles: The British Army in Northern Ireland launches Operation Demetrius. Hundreds of people are arrested and interned, thousands are displaced, and twenty are killed in the violence that followed.
August 15 » Bahrain gains independence from the United Kingdom.
October 1 » Walt Disney World opens near Orlando, Florida.
October 28 » Prospero becomes the only British satellite to be launched by a British rocket.
December 1 » Cambodian Civil War: Khmer Rouge rebels intensify assaults on Cambodian government positions, forcing their retreat from Kompong Thmar and nearby Ba Ray.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P4225.php : accessed January 8, 2026), "Alden McElrath (1889-1971)".
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