January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
February 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
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.
September 23 » Nintendo Koppai (Later Nintendo Company, Limited) is founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
November 11 » The State of Washington is admitted as the 42nd state of the United States.
Day of marriage November 12, 1910
The temperature on November 12, 1910 was between 0.4 °C and 9.4 °C and averaged 4.7 °C. There was 0.6 mm of rain. There was 5.5 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 8 » The Boy Scouts of America is incorporated by William D. Boyce.
June 25 » Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.
August 20 » Extremely dry and windy weather in the Inland Northwest of the United States causes several small wildfires to coalesce into the Great Fire of 1910, burning approximately 3million acres (12,000km) and killing 87 people.
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.
October 21 » HMSNiobe arrives in Halifax Harbour to become the first ship of the Royal Canadian Navy.
Day of death April 29, 1958
The temperature on April 29, 1958 was between 2.7 °C and 16.8 °C and averaged 10.2 °C. There was 11.8 hours of sunshine (80%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 31 » Cold War: Space Race: The first successful American satellite detects the Van Allen radiation belt.
May 22 » The 1958 riots in Ceylon become a watershed in the race relations of various ethnic communities of Sri Lanka. The total deaths is estimated at 300, mostly Tamils.
May 28 » Cuban Revolution: Fidel Castro's 26th of July Movement, heavily reinforced by Frank Pais Militia, overwhelm an army post in El Uvero.
October 2 » Guinea declares its independence from France.
October 7 » The U.S. manned space-flight project is renamed Project Mercury.
November 28 » First successful flight of SM-65 Atlas; the first operational intercontinental ballistic missile (ICBM), developed by the United States and the first member of the Atlas rocket family.
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/I76683.php : accessed October 5, 2026), "Grietje de Haan (1889-1958)".
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