The temperature on January 16, 1906 was between 4.6 °C and 7.6 °C and averaged 6.1 °C. There was 1.2 mm of rain. There was 5.9 hours of sunshine (71%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
February 11 » Pope Pius X publishes the encyclical Vehementer Nos.
February 18 » Édouard de Laveleye forms the Belgian Olympic Committee in Brussels.
May 22 » The Wright brothers are granted U.S. patent number 821,393 for their "Flying-Machine".
September 7 » Alberto Santos-Dumont flies his 14-bis aircraft at Bagatelle, France for the first time successfully.
November 9 » Theodore Roosevelt is the first sitting President of the United States to make an official trip outside the country. He did so to inspect progress on the Panama Canal.
December 24 » Radio: Reginald Fessenden transmits the first radio broadcast; consisting of a poetry reading, a violin solo, and a speech.
Day of death October 4, 1915
The temperature on October 4, 1915 was between 6.6 °C and 13.8 °C and averaged 9.5 °C. There was 3.3 mm of rain. There was 7.9 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 19 » German strategic bombing during World War I: German zeppelins bomb the towns of Great Yarmouth and King's Lynn in the United Kingdom killing at least 20 people, in the first major aerial bombardment of a civilian target.
January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
March 27 » Typhoid Mary, the first healthy carrier of disease ever identified in the United States is put in quarantine for the second time, where she would remain for the rest of her life.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
May 24 » World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies.
September 25 » World War I: The Second Battle of Champagne begins.
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/I90298.php : accessed October 16, 2026), "Roelof Slopsema (1906-1915)".
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