The origins of Italian nationalism have been traced to the Renaissance. Italian nationalism first arose as a potent political force in the 1830s in the Italian peninsula under the leadership of Giuseppe Mazzini. It served as a cause for Risorgimento in the 1860s to 1870s.
The earliest origins of German nationalism began with the birth of romantic nationalism during the Napoleonic Wars when Pan-Germanism started to rise. Advocacy of a German nation state began to become an important political force in response to the invasion of German territories by France under Napoleon.
The Founding Fathers felt the right to petition and assemble which supported the organizing principle of popular sovereignty of the Constitution. The founding fathers included John Adams and Benjamin Franklin.
