Major League Baseball All-Star Game is carried out every year in early July. The All-Star game are characterized by the players from both the NL and the AL. The first All-Star Game was held as part of the 1933 World’s Fair in Chicago, Illinois, and was the brainchild of Arch Ward, then sports editor for The Chicago Tribune. The game was scheduled to be a one-time in history, but its big achievement allow this event to be an annual one.

Back to history, two games were held during the time from 1959 to 1961, which usually took place in July and August, when came to the year of 1989, the designated-hitter rule was brought in, after that, the games which were played in an AL ballpart all used the DH rule, changes happened again in 2010, the rule is valid regardless of venue.The position players in each team’s starting lineup had been voted into the game by fans since 1974. Fan voting was discontinued after 1957, but was reinstated in 1970 and has continued ever since, and nowdays internet voting has become another way.