I Have Good Logic Questions

I have good logic questions. How did one culture learn symbols and designs from another culture in ancient times? How did the Native Americans and the people of South America have symbols and designs, that the Miao and Hmong had in China? If you ask me…. the Hmong & Native Americans and the people of South America, are the same people that got divided in ancient times. That is why you can find different Tribes and Clans on the Eastern side of the world, that have the same or similar customs, culture, and traditions, as the Native Americans and the people of South America. These are good logic questions to ask yourself.