Nationalism in Italy and Germany By 3118140 1831 Giuseppe Mazzini organized Young Italy 1848 Rebellions in Italy failed 1852 Count Camillo di Cavour was named prime minister of Sardinia Jul 21, 1858 Napoleon III of France agreed to help Cavour in Northern Italy 1860 Giuseppe Garibaldi led the Red Shirts in the unification of Southern Italy 1870 Italian forces took over the Papal States leading to Italian unification