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.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of death September 18, 1948
The temperature on September 18, 1948 was between 7.4 °C and 18.3 °C and averaged 13.7 °C. There was 4.5 hours of sunshine (36%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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 1 » Cold War: Communist forces respond to the introduction of the Deutsche Mark by attempting to force the western powers to withdraw from Berlin.
May 15 » Following the expiration of The British Mandate for Palestine, the Kingdom of Egypt, Transjordan, Lebanon, Syria, Iraq and Saudi Arabia invade Israel thus starting the 1948 Arab–Israeli War.
May 18 » The First Legislative Yuan of the Republic of China officially convenes in Nanking.
June 7 » Anti-Jewish riots in Oujda and Jerada take place.
July 26 » U.S. President Harry S. Truman signs Executive Order 9981, desegregating the military of the United States.
September 17 » The Nizam of Hyderabad surrenders his sovereignty over the Hyderabad State and joins the Indian Union.
When copying data from this family tree, please include a reference to the origin: Ad van Rosmalen, "Family tree van Rosmalen- Bosschaert- Herder- Hendriks.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-rosmalen/I2160.php : accessed May 8, 2024), "Johannes Grootenboer (1897-1948)".
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