The most important work was
Explanation: Warren completed History of the Rise, Progress and Termination of the American Revolution in 1805, making her the first woman to write a history of the Revolution.
I think it is the last one, because revolutions are connected with the need for better treatment and living conditions.
Henry David Thoreau opposed the Mexican War, so you could consider him an opponent of Manifest Destiny. Manifest Destiny was an overarching idea or concept, but it's practical application took place in many different events and contexts.
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Answer:
this would be Encomienda system
Explanation:
Life wasn’t fair everybody need their own rights in everything else
