The temperature on December 4, 1911 was between 3.0 °C and 7.6 °C and averaged 6.2 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of death December 17, 1958
The temperature on December 17, 1958 was between 5.8 °C and 8.1 °C and averaged 6.9 °C. There was -0.1 hours of sunshine (0%). The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
June 17 » The Ironworkers Memorial Second Narrows Crossing, in the process of being built to connect Vancouver and North Vancouver (Canada), collapses into the Burrard Inlet killing 18 ironworkers and injuring others.
July 1 » The Canadian Broadcasting Corporation links television broadcasting across Canada via microwave.
July 26 » Explorer program: Explorer 4 is launched.
October 1 » The National Advisory Committee for Aeronautics is replaced by NASA.
October 27 » Iskander Mirza, the first President of Pakistan, is deposed by General Ayub Khan, who had been appointed the enforcer of martial law by Mirza 20 days earlier.
November 10 » The Hope Diamond is donated to the Smithsonian Institution by New York diamond merchant Harry Winston.
When copying data from this family tree, please include a reference to the origin: J.J. Top, "Family tree Familie Top", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-top/I2344.php : accessed February 24, 2026), "Piebe de Vries (1911-1958)".
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