Brazil: Tiradentes Day in Brazil is a national holiday is celebrated annually on April 21st. It commemorates the execution of Brazilian national hero Joaquim Jose da Silva Xavier on this day in 1792.
Brazil: Known as 'Nossa Senhora de Aparecida', it honours Brazil's patron saint, the Virgin Mary Aparecida. Mary is honoured with a ten day festival in the city near São Paulo that bears her name
Rio de Janeiro, São Paulo: Zumbi dos Palmares was a warlord in the independent kingdom of Palmares. This kingdom had been founded in the seventeenth century by slaves insurgents in the north-eastern Brazil. This day celebrates the first liberation of slaves.
Brazil: Christmas celebrates the Nativity of Jesus which according to tradition took place on December 25th 1 BC
Notes
Half Day holidays are observed on Christmas Eve (December 24th) and New Year's Eve (December 31st)
Ponto facultativos are types of holidays unique to Brazil. It is up to an employer whether they allow employees to take this day. In practice, the holidays are widely observed by the public sector and large companies.