Nasser's supporters in government settled on Sadat as a transitional figure that (they believed) could be manipulated easily. However, Sadat had a long term in office and many changes in mind for Egypt and by some astute political moves was able to institute a "corrective revolution", (announced on 15 May 1971[5]) which purged the government, political and security establishments of the most ardent Nasserists.[6] Sadat encouraged the emergence of an Islamist movement which had been suppressed by Nasser. Believing Islamists to be socially conservative he gave them "considerable cultural and ideological autonomy" in exchange for political support.[7]