The Boston Red Sox are a Major League Baseball (MLB) franchise based in Boston, Massachusetts. They have played in the American League since it was founded in 1901, and the American League East since divisions were introduced in 1969. The first game of each baseball season for a team is played on Opening Day, for which being named the starting pitcher is an honor. That honor is often given to the player who is expected to lead the pitching staff that season, although there are various strategic reasons why a team's best pitcher might not start on Opening Day.