In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
October 1 » Balochistan is conquered by the British Empire.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
Day of marriage January 17, 1915
The temperature on January 17, 1915 was between 1.0 °C and 5.8 °C and averaged 2.7 °C. There was 2.8 mm of rain. There was 3.5 hours of sunshine (42%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. 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 28 » An act of the U.S. Congress creates the United States Coast Guard as a branch of the United States Armed Forces.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
May 7 » The Republic of China accedes to 13 of the 21 Demands, extending the Empire of Japan's control over Manchuria and the Chinese economy.
June 9 » William Jennings Bryan resigns as Woodrow Wilson's Secretary of State over a disagreement regarding the United States' handling of the sinking of the RMSLusitania.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
Day of death April 20, 1948
The temperature on April 20, 1948 was between 8.9 °C and 21.7 °C and averaged 14.8 °C. There was 5.5 hours of sunshine (39%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
April 3 » Cold War: U.S. President Harry S. Truman signs the Marshall Plan, authorizing $5billion in aid for 16 countries.
May 13 » Arab–Israeli War: The Kfar Etzion massacre is committed by Arab irregulars, the day before the declaration of independence of the state of Israel on May 14.
June 20 » The Deutsche Mark is introduced in Western Allied-occupied Germany. The Soviet Military Administration in Germany responded by imposing the Berlin Blockade four days later.
June 26 » William Shockley files the original patent for the grown-junction transistor, the first bipolar junction transistor.
August 23 » World Council of Churches is formed by 147 churches from 44 countries.
September 14 » The Indian Army captures the city of Aurangabad as part of Operation Polo.
When copying data from this family tree, please include a reference to the origin: Pam Schaeffer Massung, "Schaeffer-Massung Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/schaeffer-massung-family-tree/I282434305059.php : accessed April 30, 2025), "Philippe WIMMENAUER (1887-1948)".
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