Final answer:
George Washington offered freedom to enslaved blacks who joined the army.
Step-by-step explanation:
In January 1776, George Washington allowed the enlistment of free blacks with "prior military experience" in the Continental Army. In January 1777, Washington extended the enlistment terms to all free blacks in order to help fill the depleted ranks. Congress authorized the enlistment of all blacks, free and slave, in 1777, but only Maryland permitted African Americans to enlist. In 1779, Congress offered slave masters in South Carolina and Georgia $1,000 for each slave they provided to the army, but both states refused. Therefore, the largest number of black soldiers in the American army came from the North.