The temperature on April 4, 1911 was between -3.0 °C and 6.3 °C and averaged 1.6 °C. There was 1.0 mm of rain. There was 8.4 hours of sunshine (64%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
May 23 » The New York Public Library is dedicated.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
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.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
Day of death August 31, 1911
The temperature on August 31, 1911 was between 5.1 °C and 21.5 °C and averaged 14.4 °C. There was 10.2 hours of sunshine (74%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
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.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I107892.php : accessed February 15, 2026), "Pieternella Wilhelmina Keijzer (1911-1911)".
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