sentences:  After this friendly football activity, Lazio officially gave birth to its football section in 1910 and joined official league competition in 1912 as soon as the FIGC began organising championships in the centre and south of Italy.Lazio reached the national final three times, but never won, losing in 1913 to Pro Vercelli, in 1914 to Casale and in 1923 to Genoa.When FIGC launched its first full national championship in 1926, Lazio started from the Prima Divisione, the forerunner of present-day Serie B.