Events in the year 1831 in Brazil.
Incumbents Monarch: Pedro I (until April 7) Pedro II (starting April 7)
Events March March 13-15: Night of the Bottle Fight – A street fight between the Portuguese and the Brazilians.
May May 2: Emperor Pedro I abdicates from his post, leaving the throne for his 5-year-old son Pedro II. Since Pedro II was a minor, the country entered a regency period until he reached the age of 15 in 1840. References