Baseball has been around forever, so it's reasonable to assume its strategies have likewise been in existence since the 1800s. And in some cases (like this one), you'd be right. Before he became the second-winningest manager in the history of Major League Baseball, John McGraw was a player who came up with a tactical maneuver that would become a staple of all levels of baseball for the next century-plus. Playing with Baltimore Orioles, McGraw and his teammate Wee Willie Keeler (sidenote: 1800s-era names are awesome) devised the hit-and-run in part because at the time there was only one umpire, and it would be virtually impossible for him to make a close call on the basepaths while also watching the pitch coming in. Very sneaky.