The National Sovereign Conference of 1991 marked a turning point in the post-independence history of Niger and brought about multi-party democracy. From 29 July to 3 November, a national conference gathered together all elements of society to make recommendations for the future direction of the country. The conference was presided over by Prof. André Salifou and developed a plan for a transitional government; this was then installed in November 1991 to manage the affairs of state until the institutions of the Third Republic were put into place in April 1993. After the National Sovereign Conference, the transitional government drafted a new constitution that eliminated the previous single-party system of the 1989 Constitution and guaranteed more freedoms. The new constitution was adopted by a referendum on 26 December 1992. Following this, presidential elections were held and Mahamane Ousmane became the first president of the Third Republic on 27 March 1993. Ousmane's presidency was characterised by political turbulence, with four government changes and early legislative elections in 1995, as well a severe economic slump which the coalition government proved unable to effectively address.