George Washington’s crossing of the Delaware River was significant because

Explanation:

Washington crossed the Delaware River so that his army could attack an isolated garrison of Hessian troops located at Trenton, New Jersey.Washington hoped that a quick victory at Trenton would bolster sagging morale in his army and encourage more men to join the ranks of the Continentals come the new year.

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explanation:

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not sure might be he acquired the entire oregon territory from great britain