In 1805, the Italian city-states and regions are united under a single ruler for the first time since Rome fell when Giuseppe Corlesconi negotiates the loyalty of all of the disparate noblemen to himself in the Treaty of Sardinia. He places his capitol in Rome, and the newly united country is named the New Republic of Rome. The N.R.R. is one of the first European nations to join the Congress of Nations in the 1860's.