 The club competed for 14 consecutive seasons in the Primeira Divisão, its major period of success in the 1950s and 1960s, earning an honorable 5th place in 1956/57, and reaching the semi-finals of the Taça de Portugal twice.After relegation in 1966 the club went through a period of decline, never regaining access to the Portuguese top flight ever again and even descending to regional championships.The club is still today in the top 30 of teams with the most presences in the Portuguese League.