The division of arts and sciences has a history of more than 30 years in China, which is one of the reasons why the division of arts and sciences has caused strong controversy. Before the Cultural Revolution, there was no division of arts and sciences in middle school education. Cheng, a Chinese teacher in Jinan Middle School, is a "senior three", 1966, and has just finished the course of Grade Two. According to his memory, the courses at that time were very comprehensive, including Chinese, mathematics, Russian, biology, and even accounting, learning to make bills and invoices. "After the Cultural Revolution, the country lacked talents and was eager to train professionals, so there were liberal arts subjects, and the college entrance examination was also selected according to liberal arts subjects." Cheng said to him.