North Carolina Constitution Art. IX, § 6. State school fund

The proceeds of all lands that have been or hereafter may be granted by the United States to this State, and not otherwise appropriated by this State or the United States; all moneys, stocks, bonds, and other property belonging to the State for purposes of public education; the net proceeds of all sales of the swamp lands belonging to the State; and all other grants, gifts, and devises that have been or hereafter may be made to the State, and not otherwise appropriated by the State or by the terms of the grant, gift, or devise, shall be paid into the State Treasury and, together with so much of the revenue of the State as may be set apart for that purpose, shall be faithfully appropriated and used exclusively for establishing and maintaining a uniform system of free public schools.