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| 1947 | Khan, Liaquat Ali |  |
| 11th Aug Inaugurating the Assembly, Jinnah speaks of an inclusive and pluralist democracy promising equal rights for all citizens regardless of religion, caste or creed |
| 1956 | Mirza, Mirza | |
| The Constitution is adopted, Mirza becomes president |
| 1958 | Khan, Muhammad Ayub | |
| The Army seizes power and the martial law regime of Muhammad Ayub Khan bans all political parties, this was the end of the old Muslim League |
| 1958 | Mirza, Mirza | |
| Mirza abrogates the Constitution & declares martial law |
| 1962 | Khan, Muhammad Ayub | |
| Declares Pakistan's 2nd Constitution |
| 1969 | Khan, Agha Mohammad Yahya | |
| 25th Mar Terminates the Constitution and dissolves the National and Provincial Assemblies |
| 31st Mar Becomes President of the Islamic Republic of Pakistan |
| 1969 | Rahman, Mujibur | |
| Karachi First general elections, Sheikh Mujibur Rahman's Awami League secures an absolute majority in new National Assembly |
| Karachi The West Pakistan-dominated government declines to convene the National Assembly |
| 1970 | Khan, Agha Mohammad Yahya | |
| 29th Mar Through an Ordinance presents an interim Constitution, the Legal Framework Order, a formula according to which the forthcoming elections were to be organized |
| Dec The first general elections in the history of Pakistan are held |
| 1970 | Rahman, Mujibur | |
| First general elections, Sheikh Mujibur Rahman's Awami League secures absolute majority in new National Assembly |
| 1971 | Khan, Yahya | |
| 1st Mar The Constituent Assembly is postponed, causes strikes in East Pakistan |
| 1973 | Bhutto, Zulfikar Ali | |
| 10th April The National Assembly approves the 1973 Constitution on April 10, 1973, and it comes into effect on August 14 |
| 14th Aug Article 41 of the Constitution lays down that the President is to be the Head of the State, the President is to be a Muslim above 45 years of age and is to be elected by a joint sitting of members of the Parliament for 5 years |
| 14th Aug Bhutto takes over as the Prime Minister of Pakistan from the 1st effective date of the 1973 Constitution and Fazal Ilahi Chaudhry is appointed as the President of Pakistan |
| 14th Aug The 1973 Constitution provides a free and independent Judiciary |
| 14th Aug The 1973 Constitution sets up a bicameral legislature at the Center consisting of two Houses, the National Assembly and the Senate |
| 14th Aug The first Article of the Constitution declares Pakistan as a Federal Republic to be known as the Islamic Republic of Pakistan |
| 14th Aug The President can be removed on the grounds of physical or mental incapacity or impeached on charges of violating the Constitution or gross misconduct |
| 14th Aug Under the new 1973 constitution Pakistan is to be a Federation of four federating Units, Punjab, Sindh, N. W. F. P. and Baluchistan. |
| 1973 | Chaudhry, Fazal Ilahi | |
| 14th Aug Article 41 of the Constitution lays down that the President is to be the Head of the State, the President is to be a Muslim above 45 years of age and is to be elected by a joint sitting of members of the Parliament for 5 years |
| 14th Aug Bhutto takes over as the Prime Minister of Pakistan from the 1st effective date of the 1973 Constitution and Fazal Ilahi Chaudhry is appointed as the President of Pakistan |
| 14th Aug The 1973 Constitution provides a free and independent Judiciary |
| 14th Aug The 1973 Constitution sets up a bicameral legislature at the Center consisting of two Houses, the National Assembly and the Senate |
| 14th Aug The first Article of the Constitution declares Pakistan as a Federal Republic to be known as the Islamic Republic of Pakistan |
| 14th Aug The President can be removed on the grounds of physical or mental incapacity or impeached on charges of violating the Constitution or gross misconduct |
| 14th Aug The President was authorized to appoint the Attorney General, Judges of Supreme Court and High Courts, and the Chief Election Commissioners |
| 1978 | Zia-Ul-Haq, Mohammad | |
| Dismisses the government |
| 1979 | Zia-Ul-Haq, Mohammad | |
| 5th July The Constitution of 1973 is suspended by General Muhammad Zia-ul-Haq, who imposes Martial Law |
| 1983 | Zia-Ul-Haq, Mohammad | |
| Zia announces that martial law will be lifted, says army will retain key role in future governments |
| 1985 | Zia-Ul-Haq, Mohammad | |
| Passes the Eighth Amendment in the Constitution empowering the President to dissolve the National Assembly under Article 58 |
| 1996 | Bhutto, Benazir | |
| Bhutto is dismissed amid corruption scandals by President Farooq Leghari, who used the Eighth Amendment discretionary powers to dissolve the government |
| 1996 | Leghari, Farooq Ahmed | |
| Bhutto is dismissed amid corruption scandals by President Farooq Leghari, who used the Eighth Amendment discretionary powers to dissolve the government |
| 1997 | Sharif, Nawaz | |
| The Fourteenth Amendment imposes strict party discipline on members of parliament allowing party leaders to dismiss any of their legislators if they fail to vote as they were told |
| The Fourteenth Amendment makes it nearly impossible to dismiss a prime minister by a motion of no confidence |
| The Thirteenth Amendment to the Constitution of Pakistan was passed so that the President can no longer dismiss the Prime Minister |
| 1999 | Musharraf, Pervez | |
| 12th Oct Musharraf becomes de facto Head of Government (using the title Chief Executive and assuming extensive powers) of Pakistan following a bloodless coup d'‚tat |
| 2002 | Bhutto, Benazir | |
| Pakistani president Pervez Musharraf amends Pakistan's constitution to ban prime ministers from serving more than two terms, this disqualifies Bhutto from ever holding the office again |
| 2002 | Musharraf, Pervez | |
| Musharraf forcibly removes many of the Supreme Court Justices who had voted against his usurpation of power including Justice Taqi Usmani, a world authority on International financial law and Constitutional law |
| Pakistani president Pervez Musharraf amends Pakistan's constitution to ban prime ministers from serving more than two terms, this disqualifies Bhutto from ever holding the office again |
| 2002 | Usmani, Taqi | |
| Musharraf forcibly removes many of the Supreme Court Justices who had voted against his usurpation of power including Justice Taqi Usmani, a world authority on International financial law and Constitutional law |
| 2004 | Musharraf, Pervez | |
| 1st Jan In a vote of confidence Musharraf wins 658 out of 1,170 votes in the Electoral College of Pakistan, and according to Article 41(8) of the Constitution of Pakistan, is "deemed to be elected" President |
| 2007 | Bhutto, Benazir | |
| 17th Sep Benazir Bhutto accuses Pervez Musharraf's allies of pushing Pakistan into crisis by their refusal to permit democratic reforms and power-sharing |
| 2007 | Musharraf, Pervez | |
| 17th Sep Benazir Bhutto accuses Pervez Musharraf's allies of pushing Pakistan into crisis by their refusal to permit democratic reforms and power-sharing |
| 6th Oct Musharraf wins a parliamentary election for President, however, the Supreme Court rules that no winner can be officially proclaimed until it finishes deciding on whether it was legal for Musharraf to run for President while remaining Army General |
| 3rd Nov President Pervez Musharraf declares a state of emergency, citing actions by the Supreme Court of Pakistan and religious extremism in the nation |
