President of Brazil
The president of Brazil (Portuguese: presidente do Brasil), officially the president of the Federative Republic of Brazil (Portuguese: presidente da República Federativa do Brasil) or simply the President of the Republic, is the head of state and head of government of Brazil, as well as the chief executive of the executive branch of the Brazilian government and the commander in-chief of the Brazilian Armed Forces. The presidential system was established in 1889, upon the proclamation of the republic in a military coup d'état against Emperor Pedro II. Since then, Brazil has had six constitutions, three dictatorships, and three democratic periods.