January 1 - Russia begins using the Anno Domini era and no longer uses the Anno Mundi era of the Byzantine Empire.
January 26 - The magnitude 9 Cascadia Earthquake took place off the west coast of the North America, as evidenced by Japanese records.
February 12 - The Great Northern War begins in Northern Europe.
February 27 - The island of New Britain is discovered.
February 28 - Today is followed by March 1 in Sweden, thus creating the Swedish calendar.
March 1 - Sweden introduces its own Swedish calendar, in an attempt to gradually merge into the Gregorian calendar, reverts to the Julian calendar on this date in 1712, and introduces the Gregorian Calendar on this date in 1753.
