The Fourth Republic began with the adoption of the Yushin Constitution on November 21, 1972. This new constitution gave Park effective control over the parliament and the possibility of permanent presidency. The president would be elected through indirect election by an elected body, and the term of presidency was extended to six years with no restrictions on reappointment. The legislature and judiciary were controlled by the government, and educational guidelines were under direct surveillance as well. Textbooks supporting the ideology of the military government were authorized by the government, diminishing the responsibilities of the Ministry of Education.