With the war still ongoing, in 1780 Virginia and Pennsylvania came to an agreement on their mutual borders, creating the state lines known today and determining finally that the jurisdiction of Pittsburgh region was Pennsylvanian. In 1783, the Revolutionary War ended, which also brought at least a temporary cessation of border warfare. In the 1784 Treaty of Fort Stanwix, the Iroquois ceded the land north of the Purchase Line to Pennsylvania.
With the war still ongoing, in 1780 Virginia and Pennsylvania came to an agreement on their mutual borders, creating the state lines known today and determining finally that the jur!isdiction of Pittsburgh region was Pennsylvanian. In 1783, the Revolutionary War ended, which also brought at least a temporary cessation of border warfare. In the 1784 Treaty of Fort Stanwix, the Iroquois ceded the land north of the Purchase Line to Pennsylvania.