5000-3500 BCE a long with the development of writing
Douglas argued that white people should decide for themselves whether or not to allow it, while Lincoln claimed slavery was immoral and should eventually be abolished.
The gold-for-salt trade made the Region very rich.
The reasons art these:
1. they created a structured system of state and federal courts.
2. made available the basic means of collecting taxes and producing money.
3. they find solutions to the boundary disputes with Great Britain and Spain.
4. they created a structured way for settling and ruling the western territories.
