Torn by a long civil war and debilitated by smallpox and influenza the Spanish conquistadors did not find a strong resistance and took advantage of this situation. read more
it came to an end at about 1532 because the Spanish conquistadors under Francisco Pizarro invaded the Inca empire and killed the Inca ruler Atahualpa. The Spanish also brought diseases, causing the Inca civilization to decline and eventually be absorbed into Spanish culture. read more