The temperature on April 20, 1887 was about 13.5 °C. The air pressure was 33 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. 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 18 » The Reinsurance Treaty between Germany and Russia is signed.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
October 1 » Balochistan is conquered by the British Empire.
Day of marriage January 9, 1930
The temperature on January 9, 1930 was between 1.7 °C and 6.9 °C and averaged 4.2 °C. There was 0.4 mm of rain during 0.7 hours. There was 6.0 hours of sunshine (75%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
April 6 » At the end of the Salt March, Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire."
May 27 » The 1,046 feet (319m) Chrysler Building in New York City, the tallest man-made structure at the time, opens to the public.
July 7 » Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
September 17 » The Kurdish Ararat rebellion is suppressed by the Turks.
November 11 » Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
Day of death October 30, 1955
The average temperature on October 30, 1955 was 5.1 °C. There was 4.6 mm of rain during 3.4 hours. There was 1.4 hours of sunshine (14%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 2 » Following the assassination of the Panamanian president José Antonio Remón Cantera, his deputy, José Ramón Guizado, takes power, but is quickly deposed after his involvement in Cantera's death is discovered.
March 2 » Norodom Sihanouk, king of Cambodia, abdicates the throne in favor of his father, Norodom Suramarit.
April 1 » The EOKA rebellion against the British Empire begins in Cyprus, with the goal of unifying with Greece.
May 14 » Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
May 25 » First ascent of Mount Kangchenjunga: A British expedition led by Charles Evans, Joe Brown and George Band reaches the summit of the third-highest mountain in the world (8,586 meters); Norman Hardie and Tony Streather join them the following day.
September 16 » A Zulu-class submarine becomes the first to launch a ballistic missile.
When copying data from this family tree, please include a reference to the origin: J. den Nieuwenboer, "Family tree Den Nieuwenboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-den-nieuwenboer/I13627.php : accessed May 13, 2025), "Cornelia Adriana Vlaar (1887-1955)".
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