Answer:
The Proclamation Line of 1763 was a British-produced boundary marked in the Appalachian Mountains at the Eastern Continental Divide. Decreed on October 7, 1763, the Proclamation Line prohibited Anglo-American colonists from settling on lands acquired from the French following the French and Indian War.
Explanation:
The reason that this was a problem was it would have upset the balance between free states and slaves.
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https://learnodo-newtonic.com/industrial-revolution-inventions