The temperature on July 14, 1911 was between 14.2 °C and 22.7 °C and averaged 18.0 °C. There was 0.1 mm of rain. There was 13.5 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
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.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
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: C.M.J. Peterse, "Family tree Peterse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-peterse/I257.php : accessed February 11, 2026), "Karel Arnoldus Karstens (1911-)".
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