Article: Public institutions of higher education in Charleston include the College of Charleston (the nation's 13th-oldest university), The Citadel, The Military College of South Carolina, and the Medical University of South Carolina. The city is also home to private universities, including the Charleston School of Law . Charleston is also home to the Roper Hospital School of Practical Nursing, and the city has a downtown satellite campus for the region's technical school, Trident Technical College. Charleston is also the location for the only college in the country that offers bachelor's degrees in the building arts, The American College of the Building Arts. The Art Institute of Charleston, located downtown on North Market Street, opened in 2007.

Now answer this question: What year did the Art institute of Charleston open?
2007