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The Sambódromo was commissioned in 1983 and completed in 1984. It is one of two works designed by Oscar Niemeyer upon his return to Brazil after exile during the Brazilian dictatorship of 1964-1985. The democratic election of regional governors, notably in the state of Rio de Janeiro in 1982, signaled a return to civilian rule and renewed work for artists whose work was suppressed by the regime. Governor Leonel Brizola, a longtime Niemeyer associate, commissioned the Sambradrome to reflect "socialismo moreno", or multicultural socialism. Niemeyer worked closely with vice-governor Darcy Ribeiro (1922-1997), a Brazilian anthropologist, on the location and building concept. The Sambadrome was not only to function as the centerpiece of the Rio Carnival, but also house a primary school with 115 classrooms underneath the bleachers of the structure. Niemeyers's "Praça da Apoteose" (Apotheosis Square), a trilegged arch, became a noted symbol of the Rio Carnival.