Monarch – Frederick VIII (until 14 May), Christian X
Prime minister – Klaus Berntsen
Events
17 February – The Danish Union of Press Photographers is founded as the first national organization for newspaper photographers in the world.
22 February – 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.
14 May – Frederick VIII dies and his son, Christian X, becomes king of Denmark.
15 May – The proclamation of Christian C as King of Denmark.
5 August – 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.
28 September – Jacob Ellehammer takes off for the first time in his self-built Ellehammer helicopter.
Culture
Music
27 February – Carl Nielsen's Violin Concerto and Symphony No. 3 are performed in public for the first time.
Sports
1 September – Aalborg Chang is founded.
Births
January–March
30 January – Finn Juhl, architect and designer (died 1989)
18 February – Gustaf Munch-Petersen, writer and painter (died 1938)
14 March – Johan Jacobsen, film director (died 1972)
20 March – Knud Rex, actor (died 1968)
April–June
3 April – Kjeld Philip, economist and politician (died 1989)
27 April – Princess Caroline-Mathilde of Denmark, hereditary princess (died 1995)
10 June – Abraham Kurland, wrestler (died 1999)
4 June – Robert Jacobsen, artist (died 1993)
July–September
10 September – Herluf Bidstrup, cartoonist (died 1988)
16 September – Sven Havsteen-Mikkelsen, painter and illustrator (died 1999)
October–December
1 October – Anders Ejnar Andersen, politician (died 2006)
22 October – Peer Guldbrandsen, screenwriter, actor, film director and producer (d. 1996)
Deaths
January–March
6 January – Georg Achen, painter (died 1860)
12 January – Herman Bang, writer (born 1857)
1 March – Ludvig Holstein-Ledreborg, politician, prime minister of Denmark (born 1839)
April–June
24 April – Eiler Rasmussen Eilersen, painter (born 1827)
14 May – Frederick VIII (born 1843)
26 May – Louis Hasselriis, sculptor (born 1844)
October–December
25 November – Moses Melchior, businessman (born 1825)