1920s|Monarch - Christian IX
Prime minister - Johan Henrik Deuntzer (until 14 January), J. C. Christensen
1 January - Ekstra Bladet is published for the first time. Politikens Ekstrablad had been published since 12 February 1904
27 March - The Royal Danish Academy of Music's new building on H.C. Andersens Boulevard in Copenhagen is inaugurated.
31 May – The watchtower in Copenhagen Zoo is inaugurated.
25 June - The school ship Georg Stage is in a collision with the English steamship Ancona in Hollænderdybet, resulting in Georg Stage sinking and the deaths of 22 aspiring sailors.
12 September – The current Copenhagen City Hall is inaugurated.
20 November – A delegation from the Norwegian Storting is received by Christian IX who gives his consent to the choice of Prince Carl as elected king of Norway under the name Haakon VII.
2 May – Paul Høm, artist, (d. 1994)
21 October - Mads Clausen, industrialist, founder of Danfoss (d. 1966)
16 December - Piet Hein, scientist, mathematician, inventor, designer, author, and poet (d. 1996)
5 March – Ludvig Fenger, architect (b. 1833)
1905 in Denmark Wikipedia
Events from the year 1905 in Denmark.