A graduation cap, also known as a mortarboard, is a flat, square-shaped cap worn by students during graduation ceremonies. It typically features a tassel that hangs from the center, which is often moved from one side to the other to signify the transition from student to graduate. The cap is usually made of black fabric, although colors may vary depending on the institution or field of study. The graduation cap is part of the traditional academic regalia, which also includes a gown and sometimes a hood. This attire symbolizes the achievements of students and their completion of a degree program. The cap has historical roots in academic traditions, dating back to the Middle Ages when scholars wore similar headgear.