The temperature on March 9, 1910 was between 6.7 °C and 14.0 °C and averaged 10.6 °C. There was 3.6 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
June 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
June 19 » The first Father's Day is celebrated in Spokane, Washington.
October 11 » Piloted by Arch Hoxsey, Theodore Roosevelt becomes the first U.S. president to fly in an airplane.
October 20 » The hull of the RMSOlympic, sister-ship to the ill-fated RMS Titanic, is launched from the Harland and Wolff shipyard in Belfast.
November 21 » Sailors on board Brazil's warships including the Minas Gerais, São Paulo, and Bahia, violently rebel in what is now known as the Revolta da Chibata (Revolt of the Lash).
Day of death June 26, 1980
The temperature on June 26, 1980 was between 7.0 °C and 18.3 °C and averaged 12.2 °C. There was 7.0 mm of rain during 0.7 hours. There was 4.1 hours of sunshine (24%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west. 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.
February 22 » Miracle on Ice: In Lake Placid, New York, the United States hockey team defeats the Soviet Union hockey team 4–3.
February 24 » The United States Olympic hockey team completes its Miracle on Ice by defeating Finland 4–2 to win the gold medal.
February 26 » Egypt and Israel establish full diplomatic relations.
October 10 » The Farabundo Martí National Liberation Front is founded in El Salvador.
October 25 » Proceedings on the Hague Convention on the Civil Aspects of International Child Abduction conclude.
November 28 » Iran–Iraq War: Operation Morvarid: The bulk of the Iraqi Navy is destroyed by the Iranian Navy in the Persian Gulf. (Commemorated in Iran as Navy Day.)
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/I458.php : accessed May 27, 2026), "Leon Riské (1910-1980)".
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