1930s|Monarch - Frederick VIII (until 14 May), Christian X
Prime minister - Klaus Berntsen
February 17 – The Danish Union of Press Photographers is founded as the first national organization for newspaper photographers in the world.
February 22 – MS Selandia, the world's first ocean-going diesel-powered ship, departs Copenhagen on her maiden voyage, bound for Bangkok, with two B&W four-stroke diesel engines.
August 5 – The Rebild Festival is held for the first time, delayed compared to the planned date, the American Independence on July 4, due to a period of national mourning upon King Frederik VII's sudden death. The celebrations are attended by somewhere between 10,000 and 15,000 people.
September 28 – Jacob Ellehammer takes off for the first time in his self-built Ellehammer helicopter.
January 30 – Finn Juhl, architect and designer (d. 1989)
February 18 – Gustaf Munch-Petersen, writer and painter (d. 1998)
March 14 – Johan Jacobsen, film director (d. 1972)
March 30 – Knud Rex, actor (d. 1968)
April 3 – Kjeld Philip, economist and politician (d. 1989)
April 27 – Princess Caroline-Mathilde of Denmark, hereditary princess (d. 1995)
June 4 – Robert Jacobsen, artist (d. 1993)
September 10 – Herluf Bidstrup, cartoonist (d. 1988)
September 16 – Sven Havsteen-Mikkelsen, painter and illustrator (d. 1999)
October 22 – Peer Guldbrandsen, screenwriter, actor, film director and producer (d. 1996)
January 12 - Herman Bang, writer (b. 1857)
March 1 – Ludvig Holstein-Ledreborg,politician, prime minister of Denmark (b. 1839
124 April – Eiler Rasmussen Eilersen, painter (born 1827)
May 14 - Frederick VIII, King (b. 1843)
May 20 - Louis Hasselriis, sculptor (born 1844)
1912 in Denmark Wikipedia
Events from the year 1912 in Denmark.