April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of death February 13, 1939
The temperature on February 13, 1939 was between 2.2 °C and 6.6 °C and averaged 4.6 °C. There was 0.5 mm of rain during 0.6 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
May 14 » Lina Medina becomes the youngest confirmed mother in medical history at the age of five.
June 1 » First flight of the German Focke-Wulf Fw 190 fighter aircraft.
June 17 » Last public guillotining in France: Eugen Weidmann, a convicted murderer, is executed in Versailles outside the Saint-Pierre prison.
September 18 » World War II: The radio show Germany Calling begins transmitting Nazi propaganda.
November 8 » In Munich, Adolf Hitler narrowly escapes the assassination attempt of Georg Elser while celebrating the 16th anniversary of the Beer Hall Putsch.
November 30 » Winter War: Soviet forces cross the Finnish border in several places and bomb Helsinki and several other Finnish cities, starting the war.
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/I102597.php : accessed October 14, 2026), "Sybren Adema (1897-1939)".
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