1822 Dom Pedro I declares Brazil independent from Portugal on the shores of the Ipiranga creek in São Paulo.
1969 Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
1974 A fire in the 25-story Joelma Building in Sao Paulo, Brazil kills 189 and injures 293.
1992 The Carandiru Massacre takes place after a riot in the Carandiru Penitentiary in São Paulo, Brazil.
2006 Mass unrest by the Primeiro Comando da Capital begins in São Paulo (Brazil), leaving at least 150 dead.
2007 TAM Airlines (TAM Linhas Aéreas) Flight 3054 crashes upon landing during rain in São Paulo. This is Brazil's deadliest aviation accident to date with an estimated 199 deaths.