Be careful! Doing so may mean assassinating a U.S. President:
A popular story for the origin of the seventh-inning stretch is that on April 14, 1910, on opening day, 6’2" 350-pound President William Howard Taft was sore from prolonged sitting at a game between the Washington Senators and the Philadelphia Athletics and stood up to stretch, causing the crowd to feel obligated to join their president in his gestures.[4] This story is set at a far later date than the others, however, so he may only have given the presidential seal of approval to a longstanding tradition; the story that his physical problems forced him to stand up contradict this, but he might have just been waiting for the proper accepted time to relieve his pain; either way, he gave national publicity to the practice.
In baseball in the United States and Canada, the seventh-inning stretch (also known as the Lucky 7 in Japan) is a long-standing tradition that takes place between the halves of the seventh inning of a game. Fans generally stand up and stretch out their arms and legs and sometimes walk around. It is a popular time to get a late-game snack or an alcoholic beverage, as alcohol sales often cease after the last out of the seventh inning. The stretch also serves as a short break for the players.
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At the Ted in Atlanta, too. At least, three years ago, the last time I was at a Braves game. I don’t know what they’ll do at the new stadium, because I refuse to drive into the most congested traffic in the metro area.