The Boston Red Sox are a member of the Major League Baseball’s American League Eastern Division. Since , the Red Sox's home ballpark has been Fenway Park. The "Red Sox" name originates from the iconic uniform feature.The club was founded in , as one of the American League's eight charter franchises. They were a dominant team in the new league—defeating the Pittsburgh Pirates in the first World Series in . They won four more championships by , and then went into one of the longest championship droughts in baseball history, which ended in , when the team won their sixth World Series Championship. Since , the Red Sox have competed in four ALCS, have won two World Series, and have emerged as arguably the most successful MLB team of the last decade.The Red Sox led all MLB teams in average road attendance in , while the small capacity of Fenway Park caused them to rank 11th in home attendance. Every home game since May 15, 2003 has been sold out—a span of over six years and an MLB record. more