QUICK The Ohio River has had the most impact on the nation's history.

It wasn't the biggest but i'd say it was close. The Ohio River was the cause of the 7 years war which is also called The French & Indian War which was a huge war between France, The colonists, and the British Crown. The reason it was called the French & Indian war is because the Indians helped the French fight. I believe British won that war.

Explanation:

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answer; /// (c) i believe that the correct answer is; ///full faith and credit.