Victor Emanuel II annexes Naples, Sicily, and Umbria and the unification of Italy is almost complete
The recent victories of Garibaldi in southern and central Italy had made possible further unification of Italy. A plebiscite of the population followed and by decree from Naples Victor Emanuel II declared that the Neapolitan Provinces were now part of the Italian state. A similar decree on the same day did the same for Sicily and Umbria. Modern Italy had now mostly been formed. (By John Osborne)
Great Britain, Foreign and Commonwealth Office, British and Foreign State Papers, Vol. 57 (London, H.M.S.O., 1871), 1039-1041.