The temperature on January 13, 1911 was between -4.8 °C and 3.9 °C and averaged -0.8 °C. There was 6.7 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 3 » A gun battle in the East End of London left two dead and sparked a political row over the involvement of then-Home Secretary Winston Churchill.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 23 » The New York Public Library is dedicated.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
When copying data from this family tree, please include a reference to the origin: H. Panjer, "Family tree Panjer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_panjer/I921.php : accessed January 20, 2026), "Geert Panjer (1911-)".
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