Serie A, as it is structured today, began during the 1929–30 season. From 1898 to 1922, the competition was organised into regional groups. Because of ever growing teams attending regional championships, the Italian Football Federation

For most of Serie A's history, there were 16 or 18 clubs competing at the top level. Since 2004–05, however, there have been 20 clubs in total. One season (1947–48) was played with 21 teams for political reasons, following post-war tensions with Yugoslavia. Below is a

Serie A had logos that featured its sponsor Telecom Italia (TIM). The logo that was introduced in 2010 had a minor change in 2016 due to the change of

Non-EU players
Unlike La Liga, which imposed a quota on the number of non-EU players on each club, Serie A clubs could sign as many non-EU players as available on domestic transfer.
During the 1980s and

Before 1929, many clubs competed in the top level of Italian football as the earlier rounds were competed up to 1922 on a regional basis then interregional up to 1929. Below is a list of Serie A clubs who have competed in the competition since it has been a league format

In the past, individual clubs competing in the league had the rights to sell their broadcast rights to specific channels throughout Italy, unlike in most other European countries.

• Campionato Nazionale Primavera
• Coppa Campioni d'Italia
• Italian football clubs in international competitions