April 24 » Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
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 marriage February 28, 1925
The temperature on February 28, 1925 was between 2.9 °C and 8.9 °C and averaged 5.3 °C. There was 3.5 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
February 15 » The 1925 serum run to Nome: The second delivery of serum arrives in Nome, Alaska.
March 18 » The Tri-State Tornado hits the Midwestern states of Missouri, Illinois, and Indiana, killing 695 people.
March 21 » Syngman Rhee is removed from office after being impeached as the President of the Provisional Government of the Republic of Korea.
May 30 » May Thirtieth Movement: Shanghai Municipal Police Force shoot and kill 13 protesting workers.
July 18 » Adolf Hitler publishes Mein Kampf.
August 5 » Plaid Cymru is formed with the aim of disseminating knowledge of the Welsh language that is at the time in danger of dying out.
Day of death February 17, 1969
The temperature on February 17, 1969 was between -3.4 °C and -0.6 °C and averaged -1.8 °C. There was 2.3 mm of rain during 7.2 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
February 4 » Yasser Arafat takes over as chairman of the Palestine Liberation Organization.
May 2 » The British ocean liner Queen Elizabeth 2 departs on her maiden voyage to New York City.
May 20 » The Battle of Hamburger Hill in Vietnam ends.
June 22 » The Cuyahoga River catches fire in Cleveland, Ohio, drawing national attention to water pollution, and spurring the passing of the Clean Water Act and the creation of the Environmental Protection Agency.
November 12 » Vietnam War: Independent investigative journalist Seymour Hersh breaks the story of the My Lai Massacre.
December 24 » Nigerian troops capture Umuahia, the Biafran capital.
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/I170002.php : accessed October 8, 2026), "Rudmer Jilderda (1895-1969)".
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