January 9 » Hallam Tennyson, 2nd Baron Tennyson, son of the poet Alfred Tennyson, becomes the second Governor-General of Australia.
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
June 16 » The Ford Motor Company is incorporated.
July 20 » The Ford Motor Company ships its first automobile.
October 31 » The Purdue Wreck, a railroad train collision in Indianapolis, kills 17 people, including 14 players of the Purdue University football team.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
Day of death April 27, 1975
The temperature on April 27, 1975 was between 7.7 °C and 14.3 °C and averaged 10.0 °C. There was 0.5 mm of rain during 1.6 hours. There was 0.3 hours of sunshine (2%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 30 » The Monitor National Marine Sanctuary is established as the first United States National Marine Sanctuary.
February 13 » Fire at One World Trade Center (North Tower) of the World Trade Center in New York.
March 6 » Algiers Accord: Iran and Iraq announce a settlement of their border dispute.
May 28 » Fifteen West African countries sign the Treaty of Lagos, creating the Economic Community of West African States.
June 20 » The film Jaws is released in the United States, becoming the highest-grossing film of that time and starting the trend of films known as "summer blockbusters".
July 5 » Arthur Ashe becomes the first black man to win the Wimbledon singles title.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I137665.php : accessed October 20, 2026), "Willem Sytsma (1903-1975)".
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