June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage June 30, 1931
The temperature on June 30, 1931 was between 7.4 °C and 20.5 °C and averaged 14.7 °C. There was 11.8 hours of sunshine (71%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
January 7 » Guy Menzies flies the first solo non-stop trans-Tasman flight (from Australia to New Zealand) in 11 hours and 45 minutes, crash-landing on New Zealand's west coast.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 5 » The British Raj: Gandhi–Irwin Pact is signed.
March 23 » Bhagat Singh, Shivaram Rajguru and Sukhdev Thapar are hanged for the killing of a deputy superintendent of police during the Indian independence movement.
March 25 » The Scottsboro Boys are arrested in Alabama and charged with rape.
December 5 » Cathedral of Christ the Saviour in Moscow was destroyed on orders from Joseph Stalin.
Day of death March 31, 1957
The temperature on March 31, 1957 was between 3.0 °C and 8.5 °C and averaged 6.0 °C. There was 1.1 hours of sunshine (9%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
March 25 » The European Economic Community is established with West Germany, France, Italy, Belgium, Netherlands and Luxembourg as the first members.
March 25 » United States Customs seizes copies of Allen Ginsberg's poem "Howl" on obscenity grounds.
May 3 » Walter O'Malley, the owner of the Brooklyn Dodgers, agrees to move the team from Brooklyn to Los Angeles.
September 4 » American Civil Rights Movement: Little Rock Crisis: Orval Faubus, governor of Arkansas, calls out the National Guard to prevent African American students from enrolling in Central High School.
November 8 » Operation Grapple X, Round C1: The United Kingdom conducts its first successful hydrogen bomb test over Kiritimati in the Pacific.
December 20 » The initial production version of the Boeing 707 makes its first flight.
When copying data from this family tree, please include a reference to the origin: John Van Hoof, "Van Hoof Tree", database, Genealogy Online (https://www.genealogieonline.nl/van-hoof-tree/I596814.php : accessed May 7, 2025), "Martha Swinkels (1897-1957)".
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