Promotion and Relegation: The bottom 3 groups at the end of the period deal with relegation to Serie B, while the very best 3 groups from Serie B are promoted. Historical Importance: Serie A, proven in 1898, is one of the oldest and many prestigious football leagues on the earth. https://t-l-7m42075.fare-blog.com/39177817/the-best-side-of-how-many-rounds-are-there-in-serie-a