January 7 - Galileo Galilei discovers the Galilean moons of Jupiter.
March 12 – Swedish troops under Jacob de la Gardie take Moscow.
May 13-14 – Francois Ravaillac assassinates Henry IV of France.
May 27 - Ravaillac is executed by pulling him apart in the Place de Grève.
July 5 - John Guy sets sail from Bristol with 39 other colonists for Newfoundland.
August 2 - Henry Hudson sails into what it is now known as Hudson Bay, thinking he had made it through the Northwest Passage and reached the Pacific Ocean.
October 17 - Louis XIII of France crowned.
Johannes Fabricius is the first to observe sunspots by telescope.
Poland captures Moscow, just to lose it again to Russian and Swedish troops.
In Jamestown, Virginia, only 60 out of 500 settlers survive over winter and they may have to rely on cannibalism.
King of France expelled Muslims from his realm.
Arabella Stuart, pretender to the English throne, imprisoned for marrying William Seymour.
The Orion Nebula is discovered by Nicolas-Claude Fabri de Peiresc.
Bonham's Case decided by Edward Coke chief justice of England's Court of Common Pleas. Coke affirmed the supremacy of the common law which limited the power of Parliament as well as the king