Increasingly stringent regulations were passed, moving Quidditch matches farther and farther out onto deserted moors, far from Muggle towns.
Outline of Quidditch Through the Ages 
The Statute of Secrecy in 1692 led to the formation of the Department of Magical Games and Sports, which took responsibility for keeping Quidditch a secret from the Muggles.
6. Changes in Quidditch Since the Fourteenth Century
Chapter Six - "Changes to Quidditch Since the Fourteenth Century" - As the years went by, the game described by Zacharias Mumps changed as rules were introduced to make the game more fair. This chapter traces the development of each of the elements of the game: the pitch, the Quaffle, the Bludgers, the Snitch, and the various positions played: Keeper, Chaser, Beater, and Seeker. A discussion of the rules of Quidditch and of the many types of fouls ends the chapter.
The Pitch
The basic description of the Quidditch pitch, as written by Zacharias Mumps in 1398.
Several changes were made to the pitch over the years, the most controversial being the use of standardized hoops as goals instead of baskets, which annoyed some fans.
The Balls
The Quaffle was the original ball used to play the game. The design and composition of the ball has changed over the last thousand years.
The Players
The Keeper's job changed from being a Chaser with extra work to do, to being stationed in the scoring area exclusively.
