Final answer:
The Declaration of Independence was written to explain the reasons why the colonists were separating from Great Britain.
Step-by-step explanation:
The document, the Declaration of Independence, was written primarily 1) to explain the reasons why the colonists were separating from Great Britain.
It detailed the grievances against British rule and emphasized the importance of self-government and individual rights. The document was designed to be read aloud in public and to be sent to international audiences to inform them of the colonists' decision to become an independent nation.