The temperature on April 15, 1911 was between 5.3 °C and 15.2 °C and averaged 9.8 °C. There was 10.7 hours of sunshine (77%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
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.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
Day of death September 17, 1973
The temperature on September 17, 1973 was between 13.6 °C and 24.3 °C and averaged 18.6 °C. There was 0.7 mm of rain during 0.8 hours. There was 5.5 hours of sunshine (44%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 7 » In his second shooting spree of the week, Mark Essex fatally shoots seven people and wounds five others at Howard Johnson's Hotel in New Orleans, Louisiana, before being shot to death by police officers.
March 29 » Vietnam War: The last United States combat soldiers leave South Vietnam.
August 2 » A flash fire kills 51 people at the Summerland amusement centre at Douglas, Isle of Man.
September 28 » The ITT Building in New York City is bombed in protest at ITT's alleged involvement in the coup d'état in Chile.
October 8 » Spyros Markezinis begins his 48-day term as prime minister in an abortive attempt to lead Greece to parliamentary rule.
November 17 » The Athens Polytechnic uprising against the military regime ends in a bloodshed in the Greek capital.
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/I1738.php : accessed October 21, 2026), "Irma Maria Raemdonck (1911-1973)".
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