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Support by the king of Portugal.

Explanation:

The united kingdom of Portugal supported Brazil and Algarve's, which occurred at 1821 - 1824

its D granted by napoleon

Explanation:

The trigger event that leads Brazil to its independence is the invasion of the Peninsula by Napoleon.

Where if napoleon Bonaparte was defeated brazil wouldn't get its independence.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.