January 15 1970 hope this helps
Answer:
In 1820, the constitutionalists rose up in revolution, created a constitution, and forced the return of the Portuguese King. ... On September 7, 1822, Prince Dom Pedro declared Brazil's independence from Portugal, founding the Empire of Brazil, which led to a two-year war of independence.
RESPONSIBILITIES executive branch: Enforcing the laws.
Legislative branch: make the laws.
Judicial branch: Limit the powers of the other branches of government.
POWERS executive branch: Being able to veto, or reject a proposal for a law.
Legislative branch: Passing laws.
Judicial branch: Judicial review.
I'm just missing checks on other powers, sorry, I hope this helps.