High Quality Content by WIKIPEDIA articles! Rule High School was a public high school named after Captain William Rule located in Knoxville, Tennessee. When it originally opened in the fall of 1927, it was an elementary-junior high school with 525 students enrolled in the elementary grades and 261 in the junior high and high school grades. Lower grades were dropped year after year, until eventually the school just had grades 7-9. An effort was made to append a grade 12 to the school curriculum, however that initially fell through. On April 14, 1937, 600 students from grades seven through 11, wanting a 12th grade, staged a walkout protest. The protest made the front page of the New York Times. On May 9, 1938 the school board was decided to add a 12th grade. The first 12th grade class, consisting of 31 students, graduated in 1939. The school was inactivated on March 24, 2000.