The temperature on April 14, 1910 was between 9.2 °C and 16.5 °C and averaged 12.2 °C. There was 3.9 mm of rain. There was 1.6 hours of sunshine (12%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
July 4 » The Johnson–Jeffries riots occur after African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in the 15th round. Between 11 and 26 people are killed and hundreds more injured.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
August 29 » The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea.
October 22 » Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
November 14 » Aviator Eugene Burton Ely performs the first takeoff from a ship in Hampton Roads, Virginia, taking off from a makeshift deck on the USS Birmingham in a Curtiss pusher.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
Day of marriage May 12, 1939
The temperature on May 12, 1939 was between 7.4 °C and 13.2 °C and averaged 10.1 °C. There was 14.9 mm of rain during 7.5 hours. There was 0.3 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
March 30 » The Heinkel He 100 fighter sets a world airspeed record of 463mph (745km/h).
April 30 » The 1939–40 New York World's Fair opens.
May 17 » The Columbia Lions and the Princeton Tigers play in the United States' first televised sporting event, a collegiate baseball game in New York City.
November 15 » In Washington, D.C., US President Franklin D. Roosevelt lays the cornerstone of the Jefferson Memorial.
November 23 » World War II: HMSRawalpindi is sunk by the German battleships Scharnhorst and Gneisenau.
December 2 » New York City's LaGuardia Airport opens.
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/I32092.php : accessed February 17, 2026), "Pieter "Piet" Smit (1910-)".
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