All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Thursday 27 May 1660 1
1660Treaty of CopenhagenSweden and Denmark end the Second Northern WarSigned on 27 May 1660, the treaty concluded the Dano-Swedish War, with Denmark ceding territory it had regained and Sweden returning some conquests, restoring a balance of power around the Sound. It followed the death of Sweden's King Charles X Gustav earlier that year.