The first rules of the game of soccer were written in 1846 by representatives of colleges in England. Teams for soccer were formed from the popular student game of cricket. Student rooms in dormitories accommodated 11 people. Thus,we can conclude that the number of players was borrowed from the game of cricket,so as not to disrupt the already formed teams. And 11 players so that the student rooms could compete with each other,one room - one team.