The temperature on October 29, 1887 was about 7.6 °C. The air pressure was 10 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 100%. 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.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
May 9 » Buffalo Bill Cody's Wild West Show opens in London.
July 4 » The founder of Pakistan, Quaid-i-Azam Muhammad Ali Jinnah, joins Sindh-Madrasa-tul-Islam, Karachi.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 13 » Bloody Sunday clashes in central London.
Day of death April 9, 1953
The temperature on April 9, 1953 was between 5.0 °C and 10.9 °C and averaged 7.3 °C. There was -0.1 hours of sunshine (0%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
February 28 » James Watson and Francis Crick announce to friends that they have determined the chemical structure of DNA; the formal announcement takes place on April 25 following publication in April's Nature (pub. April 2).
April 25 » Francis Crick and James Watson publish "Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid" describing the double helix structure of DNA.
July 26 » Cold War: Fidel Castro leads an unsuccessful attack on the Moncada Barracks, thus beginning the Cuban Revolution. The movement took the name of the date: 26th of July Movement
July 27 » Cessation of hostilities is achieved in the Korean War when the United States, China, and North Korea sign an armistice agreement. Syngman Rhee, President of South Korea, refuses to sign but pledges to observe the armistice.
December 6 » Vladimir Nabokov completes his controversial novel Lolita.
December 10 » British Prime Minister Winston Churchill receives the Nobel Prize in literature.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P440.php : accessed December 29, 2025), "Annis Helene van Ornam (1887-1953)".
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