On 30 July 1989 Chileans cast ballots in an historic but unheralded plebiscite, and approved a massive revision of the Constitution that in 1980 the Pinochet regime had crafted to institutionalise its rule. Some observers had doubted that it would be possible to change Pinochet's prized ‘Constitution of Liberty’, while others have since questioned the significance of the reforms that were achieved. In fact, as a result of the July referendum, 54 modifications involving 12 of the document's 14 chapters were enacted before the Constitution even went fully into effect. Moreover, since the reestablishment of democracy in Chile, the coalition government of Patricio Aylwin has won passage of still other constitutional reforms involving administrative decentralisation, and has introduced draft legislation designed to bring about changes in the judicial and electoral systems. His successor, Christian Democrat Eduardo Frei, is also committed to reform.