Question: When did the dh rule start in baseball?
qaPairs: question: When did the American league regular season dh rule start in mlb baseball?
answer: 1973
question: When did the world series dh rule in even years start in mlb baseball?
answer: 1976
question: When did the world series dh rule in every game at an American League stadium in even years start in mlb baseball?
answer: 1986
question: When did the dh in all-star games at American League stadiums rule start in mlb baseball?
answer: 1989
question: When did the dh in all all-star games rule start in mlbbaseball?
answer: 2010
question: When did the dh rule start in Japanese Pacific League baseball?
answer: 1975