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.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
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.
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.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage April 19, 1933
The temperature on April 19, 1933 was between -2.0 °C and 7.9 °C and averaged 2.5 °C. There was 2.0 mm of rain during 1.4 hours. There was 5.6 hours of sunshine (40%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
March 9 » Great Depression: President Franklin D. Roosevelt submits the Emergency Banking Act to Congress, the first of his New Deal policies.
March 10 » The Long Beach earthquake affects the Greater Los Angeles Area leaving around 108 people dead.
April 7 » Prohibition in the United States is repealed for beer of no more than 3.2% alcohol by weight, eight months before the ratification of the XXI amendment. (Now celebrated as National Beer Day in the United States.)
September 13 » Elizabeth McCombs becomes the first woman elected to the New Zealand Parliament.
October 10 » A United Airlines Boeing 247 is destroyed by sabotage, the first such proven case in the history of commercial aviation.
December 15 » The Twenty-first Amendment to the United States Constitution officially becomes effective, repealing the Eighteenth Amendment that prohibited the sale, manufacture, and transportation of alcohol.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I152813.php : accessed February 18, 2026), "Willem Pieter Jan van den Berg (1897-????)".
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