The temperature on August 13, 1911 was between 15.7 °C and 32.5 °C and averaged 24.9 °C. There was 12.7 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
April 6 » During the Battle of Deçiq, Dedë Gjon Luli Dedvukaj, leader of the Malësori Albanians, raises the Albanian flag in the town of Tuzi, Montenegro, for the first time after George Kastrioti (Skanderbeg).
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
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: E.A. Harmsen, "Family tree Harmsen-de Vries", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-harmsen-de-vries/I117679.php : accessed June 16, 2024), "Lena Pietronella van der Kade (1911-)".
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