Answer:
Between about 300 and 900 A.D., the Maya were responsible for a number of remarkable scientific achievements–in astronomy, agriculture, engineering and communications.
Explanation:
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The colonists called it the French and Indian War, and it permanently shifted the global balance of power. By the mid-18th century, both the British and French wanted to extend their North American colonies into the land west of the Appalachian Mountains, known then as the Ohio Territory.