March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
May 27 » The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10-million in damage.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
November 1 » A picture showing the bare breasts of a woman appears in National Geographic magazine for the first time.
November 27 » Also sprach Zarathustra by Richard Strauss is first performed.
Day of death June 23, 1911
The temperature on June 23, 1911 was between 12.2 °C and 19.3 °C and averaged 15.2 °C. There was 6.4 mm of rain. There was 1.2 hours of sunshine (7%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
September 29 » Italy declares war on the Ottoman Empire.
When copying data from this family tree, please include a reference to the origin: Nico de Kunder, "Family tree De Kunder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-kunder/I3593.php : accessed October 18, 2026), "Joannes Mathijs Ottenheim (1896-1911)".
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