Complex sentence: In 1753, one year later than England and its colonies, Sweden introduced the Gregorian calendar, whereby the leap of 11 days was accomplished in one step, with February 17 being followed by March 1.
Split into simpler sentences: In 1753, one year later than England and its colonies, Sweden introduced the Gregorian calendar. The leap of 11 days was accomplished in one step, with February 17 being followed by March 1.