On Opening Day, lots of people will be paying attention to the game of baseball. But not too many will be paying attention to the ball itself. We take it for granted that the little leather-covered sphere will curve when it’s supposed to and fly out of the park when it’s smacked hard enough.
In the early days, pitchers usually made their own baseballs, winding yarn around a rock or walnut in their own distinct patterns to confound batters. Even when the balls became more standardized in the late 1870s with a rubber core and a leather cover cut in the traditional figure eight pattern just like balls today, the early baseballs would usually fall apart by the end of the game. They also differed from modern baseballs in that they were considered “dead.”