April –The pastor Jacob Worm who is a prisoner at Copenhagen Fortress, is sentenced to death for his satirical poems directed at the king, Thomas Kingo (his father-in-law) and others, but is pardoned and instead send to Tranquebar in exile.[2]
16 April – A royal decree orders the execution of a new cadastral survey. Christian V's Cadastre is completed in 1688.
25 June – A royal decree provides for the first street lighting in Copenhagen. 500 street lights using whale oil are installed but are not to be lit on light summer nights or when the moon is out.[2]
