 Khan had dismissed both Benazir Bhutto in 1990 and Nawaz Sharif as Prime Minister in 1993, though the latter resulted in his own resignation and is known in Pakistan as the Waheed Kakar formula.There have been numerous unsuccessful coup attempts in Pakistani history.The first noted attempt was the Rawalpindi conspiracy in 1951 led by Maj. Gen. Akbar Khan along with left-wing activists and sympathetic officers against the government of Liaquat Ali Khan, Pakistan's first prime minister.