The Rhode Island Line was a formation within the Continental Army. The term "Rhode Island Line" referred to the quota of numbered infantry regiments assigned to Rhode Island at various times by the Continental Congress. These, together with similar contingents from the other twelve states, formed the Continental Line. The concept was particularly important in relation to the promotion of commissioned officers. Officers of the Continental Army below the rank of brigadier general were ordinarily ineligible for promotion except in the line of their own state.
Not all Continental infantry regiments raised in a state were part of a state quota, however. On December 27, 1776, the Continental Congress gave Washington temporary control over certain military decisions that the Congress ordinarily regarded as its own prerogative. These “dictatorial powers” included the authority to raise sixteen additional Continental infantry regiments at large.
Early in 1777, Washington offered command of one of these additional regiments to Ezekiel Cornell of Rhode Island. Cornell declined in order to command a brigade of Rhode Island state troops.
Washington also offered command of an additional regiment to Henry Sherburne of Rhode Island, who accepted. In 1776, Sherburne has served with distinction at the Battle of The Cedars. Half of Sherburne’s Regiment was drawn from Rhode Island and half from Connecticut.
Still other Continental infantry regiments and smaller units, also unrelated to a state quota, were raised as needed for special or temporary service.
On April 23, 1775, the Massachusetts Provincial Congress voted to raise a volunteer force of 13,600 men, and it called upon the other New England colonies for assistance in raising an army of 30,000 men.
In response, the Rhode Island Assembly voted, on May 6, 1775, to contribute 1,500 men to this army. The Rhode Island troops were formed into a brigade of three infantry regiments. Nathanael Greene was the brigade commander. Two of the regiments had eight companies each, and one of the regiments had seven companies. (The Rhode Island Train of Artillery, which was a part of this force, brought the brigade's strength up to 24 companies. Rhode Island infantry regiments initially had an official establishment of 487 officers and men in eight companies (but one regiment had only 427 men in seven companies). The troops were enlisted to serve until December 31, 1775.