When did Rome become the capital of Italy?

Question

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Answer 1

Proclamed capital in late October 1870 after the annexion plebiscite (after  the conquest of Rome by the Italian/Savoy army on September 20), but really transferred from Florence in early 1871

Answer 2

Rome became the capital of Italy in 1870.

Answer 3

People think of Italy as being as old as Rome when it is a hundred years younger than the U.S.A. and only six years older than Canada. Prior to unification under Victor Emmanuel it was carved up by other European powers such as Austria and France.