On January 15,1985, Brazil elected a new president, 74 year-old Tancredo Neves, a moderate career politician who had been one of the important leaders of the opposition to the military regime which took power in 1964. Tancredo died before assuming office, but the elected Vice-president elect, José Sarney, took over the Executive Office on March 15,1985, bringing to an end 21 years of military rule. Arguably, the transition in Brazil is the most important of the recent transitions in South America (Argentina, Uruguay, Peru, Ecuador, and Bolivia), given the country's size, population, and influence, and given the fact that Neves' election marked the demise of the most successful and long-lived bureaucratic-authoritarian regime in the region. As a result, the nature and implications of the Brazilian transition will have considerable significance for understanding the political reality of the region during the next several years.