Baseball's first night game was played on May 24, 1935 at Crosley Field in Cincinnati between the Reds and the Phillies. The baseball world was forever changed when President Franklin Delano Roosevelt flipped a switch in the White House, 600 miles away, and Powell Crosby flipped a switch in Cincinnati, ushering in a new era of baseball. This ball is the only baseball that remains from that historic night. A pair of inscriptions on the ball read: "1st Night Game National League May 24, 1935" and "May 24, 1935." The ball is signed by 22 members of the Reds including Denny MacFayden, who was traded on June 15, 1935, making this an early 1935 ball. Now that night baseball is the rule, rather than the exception, it's easy to forget just how significant this date in baseball history was.