Presidency of Salvador Allende

Salvador Allende was the president of Chile from 1970 until his death in 1973, and head of the Popular Unity government; he was a Socialist and the first Marxist elected to the national presidency of a liberal democracy in Latin America. In August 1973, the Chilean Senate declared the Allende administration to be "unlawful", and Allende's presidency was ended by a military coup before the end of his term.

Source: Wikipedia — Presidency of Salvador Allende (CC BY-SA 4.0)