March 23 » Emilio Aguinaldo, only President of the First Philippine Republic, was captured at Palanan, Isabela by the forces of General Frederick Funston.
September 2 » Vice President of the United States Theodore Roosevelt utters the famous phrase, "Speak softly and carry a big stick" at the Minnesota State Fair.
December 10 » The first Nobel Prize ceremony is held in Stockholm on the fifth anniversary of Alfred Nobel's death.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of death December 30, 1938
The temperature on December 30, 1938 was between 1.3 °C and 4.8 °C and averaged 2.9 °C. There was 3.0 mm of rain during 1.2 hours. There was 1.7 hours of sunshine (22%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 30 » The animated cartoon short Porky's Hare Hunt debuts in movie theaters, introducing Happy Rabbit, an early version of Bugs Bunny.
June 7 » The Douglas DC-4E makes its first test flight.
July 10 » Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
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/I237461.php : accessed January 12, 2026), "Jans Vos (± 1872-1938)".
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