The temperature on June 21, 1911 was between 11.2 °C and 18.1 °C and averaged 14.5 °C. There was 3.4 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
May 23 » The New York Public Library is dedicated.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
Day of death January 14, 1942
The temperature on January 14, 1942 was between -11.1 °C and -6.5 °C and averaged -8.6 °C. There was 1.2 hours of sunshine (15%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 8 » World War II: Siege of Leningrad: Soviet forces open a much-needed railway link to Leningrad.
April 15 » The George Cross is awarded "to the island fortress of Malta" by King George VI.
June 21 » World War II: Tobruk falls to Italian and German forces.
July 18 » The Germans test fly the Messerschmitt Me 262 using its jet engines for the first time.
September 27 » Last day of the Matanikau action on Guadalcanal as United States Marines barely escape after being surrounded by Japanese forces.
December 2 » World War II: During the Manhattan Project, a team led by Enrico Fermi initiates the first artificial self-sustaining nuclear chain reaction.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I75136.php : accessed January 25, 2026), "Jan Roos (1876-1942)".
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