Surrounding deserts and the lack of natural barriers
The countries are Unites States and Soviet Union (Russia).
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They have artifacts like prehistoric archeologists, documents,videos tapes and other things like that
<span>Technological advancement.
With the likes of social media platforms like tweeter and facebook and specialist tech websites like techcrunch. The news of a new product will always spread virally especially if the product serves a niche purpose and it's relevant to solve a particular need that the market have been wanting for a long time. So, with improved technology that we have today, the news of new technology spreads easily.</span>
Answer:
Genghis Khan was one of the most successful leaders. He founded the Mongol Empire, one of the most powerful forces in the world at that time.
Explanation:
