Blackadder is a series of BBC television comedies, set at various points throughout English history. The first is The Black Adder, set in the late medieval period. The second is Blackadder II, set in the Elizabethan period. The third series of Blackadder the Third, set during the Regency. The fourth is Blackadder Goes Forth, set during World War I. The series also features several TV specials, including Blackadder's Christmas Carol; set in victorian times, Blackadder: The Cavalier Years; set during the English civil war, and Blackadder: Back & Forth; set in England circa 1999.