The temperature on February 21, 1911 was between 1.3 °C and 7.4 °C and averaged 4.6 °C. There was 3.1 mm of rain. There was 1.7 hours of sunshine (16%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 29 » Italy declares war on the Ottoman Empire.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
Day of death May 28, 1979
The temperature on May 28, 1979 was between 7.5 °C and 18.9 °C and averaged 14.6 °C. There was 10.6 hours of sunshine (65%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 30 » A Varig Boeing 707-323C freighter, flown by the same commander as Flight 820, disappears over the Pacific Ocean 30 minutes after taking off from Tokyo.
June 9 » The Ghost Train fire at Luna Park Sydney, Australia, kills seven.
July 11 » America's first space station, Skylab, is destroyed as it re-enters the Earth's atmosphere over the Indian Ocean.
September 7 » The Chrysler Corporation asks the United States government for US$1.5billion to avoid bankruptcy.
November 21 » The United States Embassy in Islamabad, Pakistan, is attacked by a mob and set on fire, killing four.
December 16 » Libya joins four other OPEC nations in raising crude oil prices, which has an immediate, dramatic effect on the United States.
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/I118877.php : accessed December 31, 2025), "Trientje Couperus (1911-1979)".
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