1577

Events 
 March 17 – formation of the Cathay Company to send Martin Frobisher back to the New World for more gold
 May 28 – Publication of the Bergen Book, better known as the Solid Declaration of the Formula of Concord, one of the Lutheran confessional writings. The earlier version, known as the Torgau Book (1576), had been condensed into an Epitome; both documents are part of the 1580 Book of Concord.
 September 17 – Peace of Bergerac signed between Henry III of France and the Huguenots
 The church in San Pedro in the Atacama Desert in Chile was built.
 November – The Great Comet of 1577 passed by Earth.