If you’ve ever watched a Yankee game, you may have noticed that the players don’t have their names on the back of their jerseys. At the beginning of the sport, players didn’t even have numbers. In the early 1900s some teams experimented with numbers on uniforms — just on the sleeve. It wasn’t until the 1929 season when the Yankees were planning on wearing numbers on their back, but due to a rainout, the Indians were actually the first team to wear jerseys with names on the back. When numbers were first introduced, a player’s number normally corresponded to the player’s spot in the batting order.