The new continent discovered back in the 1500 was America.: North , Central and South. At that time there weren't countries as we know today.
Brazil was formed along the time quite the same way USA and other countries were.
The portuguese people (citizens of Portugal) established their domain area in south america and there were not a conquest as you suggest, such as a war to invade a pre-existent country.
The Portuguese who settled here along with other ethnic groups formed the Brazilian people speaking the Portuguese language.
Portugal claimed the area now conforming Brazil.
In the time of Colony Brazil was Portugal
Portugal (:
The Romans supposedly claimed Egypt.
france
Portugal.
Brazil
Territory of Brazil was claimed by Portugal in April 1500. On September 7, 1822, Brazil declarared independence.
Spain, Brazil, England, and Argentina
Brazil
Portugal, mostly.
Russians comprised a third of Brazil's European immigrant population.
Brazil is the South American country claimed by Cabral, for the Portuguese King. It was not clear whether his landing was accidental or not.
At one time, England claimed the eastern seaboard of the USA.
Portugal.