Because, at Christmas, the British open the presents as they go to the stadium. Every December 26, the public gathers on the racetracks or in the precincts to attend football, rugby or even cricket matches. With regard to the round ball, the tradition goes back to December 26, 1860. On that day, Sheffield FC, dean of the clubs created in 1857, faces the other team of the city, Hallam FC, founded in 1860. This first derby in history becomes the very...