How was Italy unified?

Examine the process of Italy's unification, focusing on key questions such as the reasons for the lack of unification in 1848-49, the significance of Garibaldi's role, the impact of Cavour's actions, and the implications of Italian unification for other European nations. Key topics to explore include Austrian dominance in Italy, the influence of Italian nationalism and Mazzini, the events of 1848-49, the agreement between Victor Emmanuel II and Cavour at Plombières, the conflict with Austria in 1859, Garibaldi's campaigns in Sicily and Naples, and the establishment of the Kingdom of Italy, culminating in the completion of unification by 1870.