March 2 » United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion.
May 3 » The Great Fire of 1901 begins in Jacksonville, Florida.
August 6 » Kiowa land in Oklahoma is opened for white settlement, effectively dissolving the contiguous reservation.
September 2 » Vice President of the United States Theodore Roosevelt utters the famous phrase, "Speak softly and carry a big stick" at the Minnesota State Fair.
September 28 » Philippine–American War: Filipino guerrillas kill more than forty American soldiers while losing 28 of their own.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of marriage April 13, 1921
The temperature on April 13, 1921 was between 2.1 °C and 17.6 °C and averaged 10.4 °C. There was 0.1 mm of rain. There was 9.3 hours of sunshine (68%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
March 31 » The Royal Australian Air Force is formed.
July 22 » Rif War: The Spanish Army suffers its worst military defeat in modern times to the Berbers of the Rif region of Spanish Morocco.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
December 22 » Opening of Visva-Bharati College, also known as Santiniketan College, now Visva Bharati University, India.
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/I178692.php : accessed February 18, 2026), "Nicolaas van Leeuwen (1901-)".
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