Washington and Knox were ready to admit the Creek as a state, borders to be determined but probably much like present day Alabama. Deal was screwed up by Creek leader Alexander MacGillivray, who hated the "Americans" for the simple reason that his father died fighting as a Loyalist and the Georgia authorities subsequently confiscated some of his property. So have the elder MacGillivray decide not to fight, and little Alex becomes a much more agreeable sort, hey presto, native state (of the Union). And once there's one, there'll be more.