The temperature on May 17, 1911 was between 11.6 °C and 18.1 °C and averaged 14.7 °C. There was 8.1 hours of sunshine (51%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
May 23 » The New York Public Library is dedicated.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I425310.php : accessed January 8, 2026), "Alphonsus Maria van Pottelberghe (± 1881-> 1937)".
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