The temperature on March 24, 1911 was between 0.3 °C and 7.7 °C and averaged 3.6 °C. There was 0.9 mm of rain. There was 7.1 hours of sunshine (57%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
Day of marriage September 29, 1937
The temperature on September 29, 1937 was between 5.5 °C and 17.2 °C and averaged 11.7 °C. There was 6.7 hours of sunshine (57%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
March 21 » Ponce massacre: Nineteen people in Ponce, Puerto Rico are gunned down by police acting on orders of the US-appointed Governor, Blanton C. Winship.
May 7 » Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces.
July 7 » The Peel Commission Report recommends the partition of Palestine, which was the first formal recommendation for partition in the history of Palestine.
August 28 » Toyota Motors becomes an independent company.
December 12 » Second Sino-Japanese War: USS Panay incident: Japanese aircraft bomb and sink U.S. gunboat USSPanay on the Yangtze river in China.
December 21 » Snow White and the Seven Dwarfs, the world's first full-length animated feature, premieres at the Carthay Circle Theatre.
When copying data from this family tree, please include a reference to the origin: ellen brouwer, "Family tree Bindervoet", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-bindervoet/I2604.php : accessed January 17, 2026), "leendert leonardus van roon (1911-)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.