Alberto Lleras Camargo [SEP] position held
Alberto Lleras Camargo
Alberto Lleras Camargo (3 July 1906 – 4 January 1990) was the 20th President of Colombia (1958–1962), and the 1st Secretary General of the Organization of American States (1948–1954). A journalist and liberal party politician, he also served as Minister of Government, Minister of Foreign Affairs, and as Minister of National Education in the administrations of President Alfonso López Pumarejo. He briefly attended the National University of Colombia in Bogotá to study politics, but dropped out later to pursue journalism. 
Lleras
Front from 12 to 16 years. In 1958 elections for the presidency are reestablished and on May 4, as expected Alberto Lleras Camargo is elected the first president of the National Front.
During the government of Lleras Camargo the parity among parties was reaffirmed. Congress decreed Legislative Act 1 on September 15, 1959 which stated "Article 1. During the three constitutional periods between August 7, 1962 and August 7, 1974, the Presidency of Colombia will be held in an alternating manner by citizens members of the two traditional parties