They include "We the People" to show that they speak on behalf of not only themselves, but everyone in the US
Good luck!
-RxL
A convention was convened at Annapolis in 1786 c)to discuss interstate commerce. "The Annapolis Convention was a national political convention held September 11-14, 1786 at Mann's Tavern in Annapolis, Maryland, in which twelve delegates from five states-New Jersey,New York, Pennsylvania, Delaware and Virginia-gathered to discuss and develop a consensus about reversing the protectionist trade barriers that each state had erected."
Nationalism usually does provoke violence and rebellions within nations. A great example of such a thing was the assassination of Archduke Franz Ferdinand by a Bosnian Serb due to the fact he was a major Serbian Nationalist and believe Bosnia should be apart of Serbia.