One of the big milestones on the rules timeline is the introduction of a specifically for volleyball designed ball in 1900.
In 1912 the amount of players in a team was set at six, which is the same as today. Also the rotation before serve was introduced
The United States Volleyball Association (USVBA) began in 1928
The 1964 Tokyo Olympics marked the first time the game of volleyball was actually played in the Olympics.
Women's divisions started up in 1947.
As the game of volleyball grew in popularity into the 1980s, the Association of Volleyball Professionals (AVP) was created and helped boost the sport even more.