To what extent had the colonists developed a sense of their identity and unity as Americans by the eve of the revolution?(The period of 1750-...

Much of your answer for this DBQ has to come from
background sources.  I think that the use of the specified primary sources would be
critical in writing this.  Without knowing the specific sources identified, the answers
given here would only hope to give background information and little else.  I think that
one could make a real strong argument that there had been a sense of unified focus and
understanding within the colonies in the days leading to the Revolution.  The Second
Continental Congress had met and formulated the initial steps for war in printing money,
forming an army, and naming Washington as its commander.  The Declaration of Causes and
Necessities made a fairly strong case that helped to rally the Patriotic cause.  At the
same time, while there were Loyalists present, the Colonial nation had been whipped up
into a fervor of war with groups such as the Committees of Correspondence that were able
to send out written propaganda advocating the need to break with the
British.