Answer:
The Chalcolithic or Copper Age is the transitional period between the Neolithic and the Bronze Age.
It is taken to begin around the mid-5th millennium BC and ends with the beginning of the Bronze Age.
It ended in the late 4th to 3rd millennium BC.
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After Britain won the Seven Years' War and gained land in North America, it issued the Royal Proclamation of 1763, which prohibited American colonists from settling west of Appalachia. The Treaty of Paris, which marked the end of the French and Indian War, granted Britain a great deal of valuable North American land.
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