1850 in BrazilEvents in the year 1850 in Brazil.IncumbentsMonarch – Pedro IIPrime Minister – Marquis of Monte AlegreEventsSeptember 4: Law n° 581, known as the Eusébio de Queirós Law, is passed, which extinguishes the African slave trade to Brazil.BirthsJanuary 17: Joaquim Arcoverde, cardinal