 Complete the following phrase:  During the unification of Italy in the mid-19th century, the Papal States resisted incorporation into the new nation, even as all the other Italian countries, except for San Marino, joined it; Camillo Cavours dream of proclaiming the Kingdom of Italy from the steps of St. Peters Basilica did not come to pass. The nascent Kingdom of Italy invaded and occupied Romagna the eastern portion of the Papal States in 1860, leaving only Latium in the popes domains. Latium, including Rome itself, was 