Of course, America had to put in their two cents and standardize the practice of academic attire. American academic institutions established the Intercollegiate Commission which laid down guidelines such as different colors representing different areas of study. These guidelines are known as the Intercollegiate Code.
Over time more traditions have been developed from those of other organizations. For example, the tassel being moved from the right to the left after receiving the diploma is from Europe as a substitute for individual hooding. The tradition of graduates throwing his/her cap in the air after receiving the diploma comes from the U.S. Naval Academy. This action is symbolic of the cadets's commencement to a new life.
--Mackenzi Wood, Megan Howlett, Triston Harlan, Whitnee Guthrie, Kara Kelso, Madison Lindsey, and Haley Robinson