About the day » Wednesday December 20, 1911Calender converter

• Anna Schager, Petten, Noord-Holland, Nederland († 1986)
• Anna Maria Brandenburg, amsterdam, Nederland
• Adolf Specht, Trumau, Autriche
• Abraham van den Berg, Rotterdam,, Zuid-Holland, Nederland
• Anna Maria van de Ven, Amsterdam
• Aaltje Steringa, Niekerk
• Adrianus, Philippus Wijker, Vlaardingen († 1993)
• Anna Annes van der Meer, Harkema, Achtkarspelen, Friesland, Nederland († 1998)
• Potze, Vlagtwedde († 1911)
• Johannes Hermanus Lippus, Haarlemmermeer († 2000)

• Berend ROSING (44), Exloërmond (Odoorn), Drenthe, Nederland
• Elisabeth Schouten (59)
• Baron. Schelto van Heemstra (69), Leiden, Zuid-Holland, Nederland
• Anna Maria Josephina Arts (0), Beugen
• Antonij Bril (69), Raalte
• Adriaan Quist (0), Stavenisse gem. Tholen, Zeeland, Nederland NED
• Ammerentia van Iersel (24), Capelle, Noord-Brabant, Nederland
• Adrianus Gerardus van Wierst (0), Utrecht
• Arend Jan van der Laan (16), Rotterdam, Zuid-Holland, Netherlands
• aart RIETDIJK (63), brielle(ZH)

• 1905 » Bill O'Reilly, Australian cricketer and sportscaster († 1992)
• 1907 » Paul Francis Webster, American soldier and songwriter († 1984)
• 1908 » Dennis Morgan, American actor and singer († 1994)
• 1909 » Vakkom Majeed, Indian journalist and politician († 2000)
• 1911 » Hortense Calisher, American author († 2009)
• 1914 » Harry F. Byrd Jr., American lieutenant, publisher, and politician († 2013)
• 1915 » Aziz Nesin, Turkish author and poet († 1995)
• 1916 » Michel Chartrand, Canadian trade union leader and activist († 2010)
• 1917 » Cahit Külebi, Turkish poet and author († 1997)
• 1917 » David Bohm, American-English physicist, neuropsychologist, and philosopher († 1992)

• 1893 » George C. Magoun, American businessman (b. 1840)
• 1915 » Upendrakishore Ray, Indian painter and composer (b. 1863)
• 1916 » Arthur Morgan, Australian politician, 16th Premier of Queensland (b. 1856)
• 1917 » Lucien Petit-Breton, French-Argentinian cyclist (b. 1882)
• 1919 » Philip Fysh, English-Australian politician, 12th Premier of Tasmania (b. 1835)
• 1920 » Linton Hope, English sailor and architect (b. 1863)
• 1921 » Julius Richard Petri, German microbiologist (b. 1852)
• 1927 » Frederick Semple, American golfer and tennis player (b. 1872)
• 1929 » Émile Loubet, French lawyer and politician, 8th President of France (b. 1838)
• 1935 » Martin O'Meara, Irish-Australian sergeant, Victoria Cross recipient (b. 1882)

• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
• The Netherlands had about 6.0 million citizens.
• January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
• April 2 » The Australian Bureau of Statistics conducts the country's first national census.
• 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 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
• August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
• September 29 » Italy declares war on the Ottoman Empire.

The temperature on December 20, 1911 was between 6.7 °C and 9.8 °C and averaged 8.1 °C. There was 12.5 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest.