Águas de São Pedro–São Paulo 1941 chess tournament
The Águas de São Pedro International Tournament () was a chess tournament held from 2 to 26 July 1941 in Águas de São Pedro and São Paulo. The event, the first international chess tournament of Brazil, was organized by the São Paulo Chess Club and sponsored by Antonio and Octavio Moura Andrade, being the latter founder of Águas de São Pedro and owner of the "Grande Hotel".
São Paulo de Olivença
It was founded in 1689 as a mission by Spanish Jesuit Samuel Fritz. The municipality of Santo Antônio do Içá, located to the north, was separated from this municipality in 1955. In 2010, the city suffered from a severe landslide, causing road damage. No one was injured or killed, but many homes were lost in the Amazon River.