The temperature on June 9, 1887 was about 14.3 °C. The air pressure was 8 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 96%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
April 10 » On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
October 1 » Balochistan is conquered by the British Empire.
November 13 » Bloody Sunday clashes in central London.
Day of marriage June 20, 1912
The temperature on June 20, 1912 was between 13.2 °C and 18.0 °C and averaged 15.8 °C. There was 3.2 mm of rain. There was 5.9 hours of sunshine (35%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
October 3 » U.S. forces defeat Nicaraguan rebels at the Battle of Coyotepe Hill.
October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
November 2 » Bulgaria defeats the Ottoman Empire in the Battle of Lule Burgas, the bloodiest battle of the First Balkan War, which opens her way to Constantinople.
December 6 » The Nefertiti Bust is discovered.
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of death January 21, 1978
The temperature on January 21, 1978 was between 0.6 °C and 3.2 °C and averaged 2.3 °C. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
January 24 » Soviet satellite Kosmos 954, with a nuclear reactor on board, burns up in Earth's atmosphere, scattering radioactive debris over Canada's Northwest Territories. Only 1% is recovered.
January 31 » The Crown of St. Stephen (also known as the Holy Crown of Hungary) goes on public display after being returned to Hungary from the United States, where it was held after World War II.
April 7 » Development of the neutron bomb is canceled by President Jimmy Carter.
August 17 » Double Eagle II becomes first balloon to cross the Atlantic Ocean when it lands in Miserey, France near Paris, 137 hours after leaving Presque Isle, Maine.
November 23 » Cyclone kills about 1000 people in eastern Sri Lanka.
December 6 » Spain ratifies the Spanish Constitution of 1978 in a referendum.
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/I89498.php : accessed February 26, 2026), "Mettien Sloots (1887-1978)".
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