June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of death May 25, 1975
The temperature on May 25, 1975 was between 3.2 °C and 18.6 °C and averaged 11.9 °C. There was 8.2 hours of sunshine (51%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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.
March 22 » A fire at the Browns Ferry Nuclear Power Plant in Decatur, Alabama causes a dangerous reduction in cooling water levels.
April 8 » Frank Robinson manages the Cleveland Indians in his first game as major league baseball's first African American manager.
May 6 » During a lull in fighting, 100,000 Armenians gather in Beirut for the 60th anniversary commemorations of the Armenian Genocide.
July 15 » Space Race: Apollo–Soyuz Test Project features the dual launch of an Apollo spacecraft and a Soyuz spacecraft on the first joint Soviet-United States human-crewed flight. It was both the last launch of an Apollo spacecraft, and the Saturn family of rockets.
October 1 » Muhammad Ali defeats Joe Frazier in a boxing match in Manila, Philippines.
November 22 » Juan Carlos is declared King of Spain following the death of Francisco Franco.
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/I79120.php : accessed October 19, 2026), "Wopke Lap (1895-1975)".
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