The temperature on July 11, 1889 was about 20.7 °C. The air pressure was 20 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 72%. Source: KNMI
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.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of marriage April 30, 1909
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 12 » The National Association for the Advancement of Colored People (NAACP) is founded.
February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
April 13 » The military of the Ottoman Empire reverses the Ottoman countercoup of 1909 to force the overthrow of Sultan Abdul Hamid II.
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.
November 18 » Two United States warships are sent to Nicaragua after 500 revolutionaries (including two Americans) are executed by order of José Santos Zelaya.
December 14 » New South Wales Premier Charles Wade signs the Seat of Government Surrender Act 1909, formally completing the transfer of State land to the Commonwealth to create the Australian Capital Territory.
Day of death December 18, 1956
The temperature on December 18, 1956 was between 6.4 °C and 10.4 °C and averaged 8.4 °C. There was 2.1 hours of sunshine (27%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
June 11 » Start of Gal Oya riots, the first reported ethnic riots that target minority Sri Lankan Tamils in the Eastern Province. The total number of deaths is reportedly 150.
July 13 » The Dartmouth workshop is the first conference on artificial intelligence.
July 16 » Ringling Bros. and Barnum & Bailey Circus closes its last "Big Tent" show in Pittsburgh, Pennsylvania; due to changing economics, all subsequent circus shows will be held in arenas.
July 25 » Forty-five miles south of Nantucket Island, the Italian ocean liner SSAndrea Doria collides with the MSStockholm in heavy fog and sinks the next day, killing 51.
September 9 » Elvis Presley appears on The Ed Sullivan Show for the first time.
November 4 » Soviet troops enter Hungary to end the Hungarian revolution against the Soviet Union that started on October 23. Thousands are killed, more are wounded, and nearly a quarter million leave the country.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I424974.php : accessed February 23, 2026), "Jankje Snippe (1889-1956)".
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