What is the conversation mainly about?

W:Do you like sports?
M:Yes, especially volleyball.
W:Really? Do you know when volleyball was introduced to China?
M:Well, it was introduced to China as early as 1910. Do you know when volleyball became an official game in the Olympics?
W:I am not sure. Can you tell me?
M:I think volleyball made its first demonstration in 1924 at the Olympic Games in Paris. And the International Olympic Committee made the game a non-Olympic sport in 1949.It was not until 1964 that the first Olympic volleyball tournaments were played in Tokyo.
W:So it took four decades to have volleyball to become one of the official games in the Olympics. Can you tell me how many players are there in a team?
M:Volleyball was invented to be played by a number of players. However, the rules were modified many times. In earlier days, teams were made up of 16 players, and later the number of players on the court a-gain became variable—being anything from 2 to 6 for each team.
W:Did all the rules of the game finally become unified? How about the Olympic Teams?
M:Yes, the rules were unified.The number of the players on each team was set at 6.