January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
May 27 » The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10-million in damage.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
Day of marriage October 27, 1915
The temperature on October 27, 1915 was between -2.7 °C and 10.0 °C and averaged 3.2 °C. There was 4.5 hours of sunshine (45%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
May 6 » Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run.
May 23 » World War I: Italy joins the Allies, fulfilling its part of the Treaty of London.
July 7 » The First Battle of the Isonzo comes to an end.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
October 12 » World War I: British nurse Edith Cavell is executed by a German firing squad for helping Allied soldiers escape from Belgium
Day of death May 30, 1955
The temperature on May 30, 1955 was between 6.4 °C and 18.4 °C and averaged 11.8 °C. There was 10.1 hours of sunshine (62%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 8 » The Government of Sindh, Pakistan, abolishes the Jagirdari system in the province. One million acres (4000km) of land thus acquired is to be distributed among the landless peasants.
April 1 » The EOKA rebellion against the British Empire begins in Cyprus, with the goal of unifying with Greece.
April 12 » The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
May 18 » Operation Passage to Freedom, the evacuation of 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam to South Vietnam following the end of the First Indochina War, ends.
September 20 » The Treaty on Relations between the USSR and the GDR is signed.
September 25 » The Royal Jordanian Air Force is founded.
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/I199786.php : accessed February 23, 2026), "Hendrik Bakker (1896-1955)".
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