May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
July 28 » The city of Miami, Florida is incorporated.
December 30 » Canadian ice hockey player Ernie McLea scores the first hat-trick in Stanley Cup play, and the Cup-winning goal as the Montreal Victorias defeat the Winnipeg Victorias 6–5.
December 30 » Filipino patriot and reform advocate José Rizal is executed by a Spanish firing squad in Manila.
Day of death May 13, 1957
The temperature on May 13, 1957 was between 7.7 °C and 16.9 °C and averaged 12.3 °C. There was 1.5 mm of rain during 0.8 hours. There was 6.0 hours of sunshine (39%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 5 » In a speech given to the United States Congress, United States President Dwight D. Eisenhower announces the establishment of what will later be called the Eisenhower Doctrine.
August 31 » The Federation of Malaya (now Malaysia) gains its independence from the United Kingdom.
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.
October 4 » Sputnik 1 becomes the first artificial satellite to orbit the Earth.
November 1 » The Mackinac Bridge, the world's longest suspension bridge between anchorages at the time, opens to traffic connecting Michigan's upper and lower peninsulas.
November 7 » Cold War: The Gaither Report calls for more American missiles and fallout shelters.
When copying data from this family tree, please include a reference to the origin: Theo Kelner, "Family tree Kelner", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kelner/I2052.php : accessed February 25, 2026), "Maartje Koomen (± 1874-1957)".
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