Human history came about differently all over the world for the last 13,000 years because of simply of the environment in which each continent is located. Many people believe it is because of biological differences among the people around the world, but now we know that isn’t correct. The environment of each continent means different forms of language, diseases, political, religions, ect. They also have different species of animals and plants that one continent may not have come across. To get deeper into the subject, an example of how the environment created the differences is how the Inca and Aztec empires were overthrown by the 2 spanish explorers named CorteŽ and Pizarro and there crew of a couple hundred. The two empires had many people