From 1973 organized as a sub-district named in so-called "homage" to former Brazilian military president Emílio Garrastazu Médici, who had been appointed as president by the military junta, the region was elevated to full municipal status in 1981.
The area was created as a sub-district in 1973, honoring the Brazilian military leader Emílio Garrastazu Médici who had been appointed by the military junta. The region became a fully-fledged municipality in 1981.