About the day » Friday December 20, 1912Calender converter

• Adrianus Johannes Vlasveld, Voorhout, Zuid Holland, Nederland († 2002)
• Adriana Maria De Meij, Cadzand, Zeeland, Netherlands († 1995)
• van Breugel
• Anna Marcella Henriette Schiffer, Bogor ook Buitenzorg, Jawa Barat (Djawa Barat), Indonesië († 1996)
• Adrianus Martinus Wolfs, Hilvarenbeek († 1985)
• , Koudekerke, Nederland († 1983)
• Anna Hendrika Lambers, Utrecht
• Anna Maria Jozefina Meentz, Heerlen, Limburg, Netherlands († 1996)
• Annigje Ingetje Rijsdijk, Zwijndrecht, Nederland († 1984)
• Albert Antonie Grootherder, Brummen († 1982)

• Aletta Scheerder (91), Oud-Beijerland
• Adrianus Petrus Jacobs (14), Maastricht, Limburg, Nederland
• Agnes Elisabeth Wynona Le Clerq Joy (71), Bad Herrenalb, Baden-Württemberg
• Antje Jacobs SINIA (79), Avereest Overijssel Netherlands
• Adrianus van Montfoort (56), Utrecht (Utrecht)
• Adriana Jacoba Olsthoorn (65), Naaldwijk, Zuid-Holland, Nederland
• Anna Maria Lambertina ENGELBOSCH (3), Hasselt, Provincie Limburg, Flanders, Belgie
• Anna Maria Elisabetha Peerbooms (72), Born (Sittard-Geleen), Limburg, Nederland
• Albertje Broeksma (72), Kampen
• Anthonie Bruijstens (77), Gouda Zuid-Holland, Nederland

• 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 » Audrey Totter, American actress († 2013)
• 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 6 » New Mexico is admitted to the Union as the 47th U.S. state.
• June 30 » The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan.
• August 6 » The Bull Moose Party meets at the Chicago Coliseum.
• September 25 » Columbia University Graduate School of Journalism is founded in New York City.
• October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
• December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)

The temperature on December 20, 1912 was between 0.5 °C and 8.0 °C and averaged 4.4 °C. There was 5.5 hours of sunshine (71%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south.