Answer:
Communist revolution is the answer
Pythagoras was perhaps the first to realize that a complete system of mathematics could be constructed, where geometric elements corresponded with numbers. Pythagoras' Theorem (or the Pythagorean Theorem) is one of the best known of all mathematical theorems.
Examples of man-made disasters include explosions, pollution, terrorist incidents, shipwrecks, stampedes, industrial incidents, climate changes, wars, etc.
The correct answer of the given question above would be the APACHES. The American Indian group that became feared enemies of the Spanish, especially after they obtained horses is the Apaches. Other choices of this question include Karankawas, Tiguex and Pueblos. Hope this answer helps.
