February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
April 5 » Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
July 9 » The Federation of Australia is given royal assent.
September 8 » Galveston hurricane: A powerful hurricane hits Galveston, Texas killing about 8,000 people.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage April 20, 1927
The temperature on April 20, 1927 was between 5.9 °C and 13.9 °C and averaged 9.9 °C. There was 4.7 hours of sunshine (33%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 19 » Mae West is sentenced to ten days in jail for obscenity for her play Sex.
April 30 » Douglas Fairbanks and Mary Pickford become the first celebrities to leave their footprints in concrete at Grauman's Chinese Theatre in Hollywood.
June 13 » Aviator Charles Lindbergh receives a ticker tape parade down 5th Avenue in New York City.
July 15 » Massacre of July 15, 1927: Eighty-nine protesters are killed by the Austrian police in Vienna.
September 22 » Jack Dempsey loses the "Long Count" boxing match to Gene Tunney.
November 21 » Columbine Mine massacre: Striking coal miners are allegedly attacked with machine guns by a detachment of state police dressed in civilian clothes.
Day of death July 23, 1947
The temperature on July 23, 1947 was between 16.7 °C and 30.8 °C and averaged 23.5 °C. There was 8.6 hours of sunshine (54%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
April 9 » The Glazier–Higgins–Woodward tornadoes kill 181 and injure 970 in Texas, Oklahoma, and Kansas.
April 16 » Bernard Baruch first applies the term "Cold War" to describe the relationship between the United States and the Soviet Union.
April 28 » Thor Heyerdahl and five crew mates set out from Peru on the Kon-Tiki to demonstrate that Peruvian natives could have settled Polynesia.
May 1 » Portella della Ginestra massacre against May Day celebrations in Sicily by the bandit and separatist leader Salvatore Giuliano where 11 persons are killed and 33 wounded.
September 30 » The 1947 World Series is the first to be televised, to include an African-American player, to exceed $2 million in receipts, to see a pinch-hit home run, and to have six umpires on the field.
October 1 » The North American F-86 Sabre flies for the first time.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I317489.php : accessed February 7, 2026), "Johannes Marinus Slegers (1900-1947)".
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