1956 was my first season as a baseball fan. That year Mickey Mantle had one of the best seasons ever by a hitter. He won the Triple Crown with a batting average of .353, 52 home runs, and 130 RBIs. His on-base average plus slugging percentage was 1.169. I resisted the temptation to become a New York Yankees fan, opting instead for the hometown Washington Senators. Their star, Roy Sievers, became my favorite player. But I always wondered what it would be like to root for a team with a star having a season like Mantle’s. In 2015, I found...