In the last 10 years, Boston has had its team from the four major sports all win at least one title and all four teams have all been to multiple championship series (or games). Which got me to thinking, has any other city had a 10 year period as prolific as Boston? Now sure there have been more titles (the Yankees, the Celtics, dynasties), but has there been a 10 year run with such sustained success from all 4 major sports teams better than the last 10 years in Boston? I don't even think NY with all of their teams has ever had a 10 year period with all 4 sports having a champion (the NFL wins don't overlap with both the NHL and NBA).