I believe that they used the Oregon Trail
Answer:
History is not short of documents where American Indians culture is written down. One such example is: The Indians America Loves to Love and Read: American Indian Identity and Cultural Appropriation by Kathryn W. Shanly.
Explanation:
The trials and tribulations shared by the American Indians are great in number. Their culture mainly had been effected. Their livelihood was taken away from them.
Their believes were questioned and put to est. They had to bow down to the colonists because they were simple people who had little exposure. Who welcomed people into their homes and in return they were terrorised for it.
Answer: The Industrial Revolution and the Space Race
Explanation:
The Industrial Revolution: Transformed economies that had previously been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system (more efficient). New machines, new power sources, and new ways of organizing work made existing industries more productive and efficient and allowed further innovation in all facets of life.
Space Race: Changed how humanity understood and interacted with the wider universe; led to vast advancements in travel, weaponry, science, astronomy, and now economy as private companies are working on space trips using technology and knowledge learned during the Space Race.
The brain. Modern homo sapiens such as humans have much larger brain than the early homo sapiens due to the fact that food at the time was becoming scarce so the need for the homo sapiens to become smarter was a necessity. And because of this early homisapiens brains evolved to become much larger than what they were before