January 5 Francesco Cavalli's opera "Giasone," premieres in Venice February 5 Prince of Wales becomes king Charles II March 11 Treaty of Rueil destroys 1st Fronde-uprising April 21 Maryland Toleration Act passed, allowing all freedom of worship June 1 Czar Aleksei throws out English merchants from Moscow September 11 Massacre of Drogheda-Cromwell kills 3,000 royalists September 11 Oliver Cromwell seizes Drogheda Ireland, most inhabitants massacred September 30 Last Swedish troops vacate Prague
