February 15 » The association football club Alianza Lima is founded in Lima, Peru, under the name Sport Alianza.
May 3 » The Great Fire of 1901 begins in Jacksonville, Florida.
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 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
September 28 » Philippine–American War: Filipino guerrillas kill more than forty American soldiers while losing 28 of their own.
November 13 » The 1901 Caister lifeboat disaster.
Day of marriage March 31, 1926
The temperature on March 31, 1926 was between -1.0 °C and 12.8 °C and averaged 6.6 °C. There was 8.9 hours of sunshine (69%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 26 » The first demonstration of the television by John Logie Baird.
March 14 » The El Virilla train accident, Costa Rica, kills 248 people and wounds another 93 when a train falls off a bridge over the Río Virilla between Heredia and Tibás.
May 18 » Evangelist Aimee Semple McPherson disappears in Venice, California.
June 23 » The College Board administers the first SAT exam.
June 28 » Mercedes-Benz is formed by Gottlieb Daimler and Karl Benz merging their two companies.
August 6 » Gertrude Ederle becomes the first woman to swim across the English Channel.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I45827.php : accessed February 11, 2026), "Hermanus de Graaff (1901-)".
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