Well the Incas made some great contributions to history. One way was that they made quipus. Even thought the Incas did not have a written language they did use quipus, which were a complex math and communication system. Quipu strings were very effective and they helped with math and communication all throughout the Inca empire. The Inca people also built roads, stone buildings, and developed different ways of farming. They also discovered many things about astronomy. I sure hope this helps! :)
Answer:
They constructed strong cities with walls.
Explanation:
The correct answer is B) the Monroe Doctrine.
Known as the Roosevelt Corollary, this was an addition to which U.S. Foreign policy?
Answer: the Monroe Doctrine.
The purpose of President Theodore Roosevelt's corollary was to discourage European nations from colonizing Latin America.
US President Theodore Roosevelt was delivering his State of the Union Address in 1904 when he referred to an addition to the Monroe Doctrine that was called the Roosevelt Corollary. The document referred to the capacity of the United States to intervene in issues regarding European nations and Latin American countries, instead of European countries doing it directly.
