February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
Day of death April 10, 1950
The temperature on April 10, 1950 was between 4.9 °C and 9.3 °C and averaged 6.8 °C. There was 9.4 mm of rain during 5.5 hours. There was 2.4 hours of sunshine (18%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west-southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 5 » In the Sverdlovsk air disaster, all 19 of those on board are killed, including almost the entire national ice hockey team (VVS Moscow) of the Soviet Air Force – 11 players, as well as a team doctor and a masseur.
January 6 » The United Kingdom recognizes the People's Republic of China. The Republic of China severs diplomatic relations with the UK in response.
May 5 » Bhumibol Adulyadej is crowned as King of Thailand.
May 29 » The St. Roch, the first ship to circumnavigate North America, arrives in Halifax, Nova Scotia, Canada.
November 1 » Pope Pius XII claims papal infallibility when he formally defines the dogma of the Assumption of Mary.
November 8 » Korean War: United States Air Force Lt. Russell J. Brown, while piloting an F-80 Shooting Star, shoots down two North Korean MiG-15s in the first jet aircraft-to-jet aircraft dogfight in history.
When copying data from this family tree, please include a reference to the origin: G. van der Waal, "Family tree van der Waal", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-der-waal/I13914.php : accessed December 24, 2025), "Antonie Vlasblom (1897-1950)".
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