April 20 – The Danish seizure of Fort Christiansborg and Carlsborg (Cape Castle) completes the annexation of the Swedish Gold Coast settlements, the beginning of the Danish Gold Coast.
Undatededit
Peder Syv publishes Nogle Betenkninger om det Cimbriske Sprog .[2]
Publicationsedit
Thomas Bartholin: De pulmonum substantia et motu. Copenhagen, 1663.