Cause:
Italy, after the fall of Napoleon, was divided into separate ill-governed small states, with Venice and Lombardy in the hands of Austria. The idea of uniting Italy under one Government grew as the century advanced, and received fresh impetus from the revolutionary movements in Europe in 1830 and 1848. The society, “Young Italy,” under the guidance of Mazzini, kept the spirit of revolution alive, although several insurrections instigated by them failed. The expulsion of Austria became the central idea of the movement.