Since 1947, Inter has shared the San Siro stadium, the largest stadium in Italy, with AC Milan, with whom it contests the long-standing Derby della Madonnina, one of the most widely followed rivalries in world football.
The club was founded on 9 March 1908 after a split within the Milan Foot-Ball and Cricket Club (now AC Milan), and won its first championship in 1910. Since its formation, the club has won 39 domestic trophies, including 21 league titles, 10 Coppa Italia, and 8 Supercoppa Italiana. From 2006 to 2010, the club won five successive league titles, equaling the all-time record at that time. It has won the European Cup/Champions League three times. Its latest win in 2010 completed an unprecedented Italian seasonal treble, with Inter also winning the Serie A title and the Coppa Italia in the same year. The club has also won three UEFA Cups, two Intercontinental Cups, and one FIFA Club World Cup.