Marketing and Relegation: The bottom 3 groups at the end of the season deal with relegation to Serie B, when the highest a few teams from Serie B are promoted. Historic Importance: Serie A, set up in 1898, is probably the oldest and most prestigious soccer leagues on this planet. https://tl7m64297.blogofchange.com/39515538/how-many-rounds-are-there-in-serie-a-things-to-know-before-you-buy