The temperature on April 30, 1909 was between 1.8 °C and 10.3 °C and averaged 6.0 °C. There was 19.1 mm of rain. There was 6.0 hours of sunshine (41%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
April 11 » The city of Tel Aviv is founded.
August 24 » Workers start pouring concrete for the Panama Canal.
August 30 » Burgess Shale fossils are discovered by Charles Doolittle Walcott.
September 7 » Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.
Day of death July 1, 1973
The temperature on July 1, 1973 was between 13.4 °C and 28.6 °C and averaged 22.3 °C. There was -0.1 mm of rain. There was 13.8 hours of sunshine (83%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. 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 14 » Elvis Presley's concert Aloha from Hawaii is broadcast live via satellite, and sets the record as the most watched broadcast by an individual entertainer in television history.
January 15 » Vietnam War: Citing progress in peace negotiations, President Richard Nixon announces the suspension of offensive action in North Vietnam.
May 14 » Skylab, the United States' first space station, is launched.
September 20 » Singer Jim Croce, songwiter and musician Maury Muehleisen and four others die when their light aircraft crashes on takeoff at Natchitoches Regional Airport in Louisiana.
September 24 » Guinea-Bissau declares its independence from Portugal.
December 1 » Papua New Guinea gains self-governance from Australia.
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/I6564.php : accessed February 8, 2026), "Alexander Permentier (1909-1973)".
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