The thirteen american colonies declared their independence from great britain because britain
abolished slavery
gained control of canada
forced the colonists to settle in north america
tried to take away the colonists' rights

The Thirteen American Colonies declared their independence from Great Britain because Britain tried to take away the colonists' rights. For example, Britain put extreme taxes on them such as the stamp and tea act. Also, they had no one to represent themselves in the parliament so they felt as if they had no way to make decisions for themselves and for the better of themselves and not the people in Britain an ocean away, so they wanted freedom from Britain.