The 1981 realignment moved the Norris Division to the Clarence Campbell Conference and added that Conference's Patrick Division instead. When the names of conferences and divisions were changed in 1993, the Eastern Conference's divisions became the Atlantic and Northeast.
The 1981 realignment of the Norris Division to the Clarence Campbell Conference and the subsequent addition of its Patrick Division occurred in 1981. In 1993, when conference and division names were changed, the Eastern Conference's divisions became the Atlantic and Northeast.