Baseball is a 19th century pastoral game. Football is a 20th century technoligical struggle. Baseball is played on a diamond, in a park, the baseball park. Football is played in a gridiron in a stadium sometimes called Soldier Field or War Memorial Stadium. Baseball begins in the spring, the season of new life.
Football begins in the fall when everything is dying.
In football, you wear a helmet. In baseball, you wear a cap. In football you receive a penalty. In baseball you make an error. In football, the specialists comes in to kick something.