Cagliari Calcio was founded on 30 May 1920 by surgeon and sports official Gaetano Fichera. For the first decades of its existence, the Sardinian club remained in the shadow of Italian football, dropping as low as the third tier on several occasions before establishing itself in Serie A in the mid-1960s.
A turning point in the club's history came in 1963 with the arrival of forward Luigi "Gigi" Riva, who remains, to this day, the all-time leading scorer for the Italian national team. Nicknamed "Rombo di Tuono" (Roar of Thunder), Riva scored 208 goals in 377 appearances for Cagliari and became forever bound to the island's identity. It was under his leadership, guided by manager Manlio Scopigno and with goalkeeper Enrico Albertosi in goal, that the Rossoblรน won their only Serie A title in the 1969-70 season โ a triumph still regarded as one of the most romantic in Italian football history. It also marked the first time a club from south of Rome had won the Italian championship.
On the European stage, Cagliari's best result remains a semi-final appearance in the 1993-94 UEFA Cup, where the club was eliminated by eventual winners Internazionale. Gianfranco Zola also left his mark on the club's history, returning to Cagliari late in his career and helping the side back to Serie A.
The club's colours, red and blue, echo the flag of the city of Cagliari, while its badge also incorporates the flag of Sardinia, reflecting the club's deep connection to the island's identity as a whole. Today the team plays its home matches at the Unipol Domus, and supporters still recall the 1970 scudetto as the moment a small island briefly became the centre of Italian football.