Final answer:
The correct order of events in the unification of Italy is Count Cavour becoming the leader of Sardinia, the Papal States joining Italy, Giuseppe Garibaldi joining southern Italy to northern Italy, and Count Cavour unifying northern Italy.
Step-by-step explanation:
The correct order of events in the unification of Italy is as follows:
- Count Cavour became the leader of Sardinia.
- The Papal States joined Italy.
- Giuseppe Garibaldi joined southern Italy to northern Italy.
- Count Cavour unified northern Italy.
After Giuseppe Garibaldi's successful campaign in Sicily, Count Cavour convinced Napoleon III to block Garibaldi's further progress and annexed the Papal States to Piedmont-Sardinia. Garibaldi ceded his conquests to Victor Emmanuel, and Italy grew to encompass both Sicily and the south. Count Cavour then unified northern Italy.