The Diamondbacks became the youngest
expansion franchise to win a World Series in 2001, winning it in their fourth season. However, it is incorrect to say, as too many sportswriters have done, that they were the youngest-ever World Series chanpions. The
Boston Red Sox won the first World Series, in 1903, in only their third season of play. The Red Sox were charter members of the American League, which played its first major-league season in 1901. --
RjLesch