Shot Heard 'Round the World

The Polo Grounds was the name given to four different stadiums in Upper Manhattan, New York City, used by many professional teams in both baseball... and American football from 1880 until 1963. In baseball, the site was home to the New York Metropolitans from 1880 until 1885, the New York Giants from 1883 until 1957, the New York Yankees from 1912 until 1922, and the New York Mets in their first two seasons of 1962 and 1963. In football, the fourth Polo Grounds was home to two National Football League franchises; the short-lived New York Brickley Giants, for one game in 1921, and the New York Giants, from 1925 to 1955. Later, it was home to the New York Jets of the American Football League from the league's inaugural season of 1960, when the team was known as the New York Titans, through the team's first season as the Jets in 1963. It also hosted the 1934 and 1942 Major League Baseball All-Star Games. As its name suggests, the original Polo Grounds was built in 1876 for the sport of polo. Of the four stadiums that carried this name over the years, the original structure was the only one actually used for polo.
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The 1951 Major League Baseball season.