Linked from
The 117 pages that link to Unification of Italy, each with the reason it gives.
RisorgimentoNarrower topic: The Risorgimento was the movement that drove this broader process.
PalermoNarrower topic: Palermo’s capture in 1860 helped bring Sicily into the unified Italian state.
PiedmontNarrower topic: Piedmont’s state and monarchy led the process that unified the peninsula.
Battle of MagentaNarrower topic: The victory weakened Austria's hold and accelerated unification.