Answer:
When Genghis Khan died the land was broken up, and the descendants got to rule one. They did fight over them, a lot. Through the silk road they were able to contact other areas
Explanation:
Quizlet
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.
D. Return of the republicans is your answer.