The answer is dictatorships. Something to do with dictators.
Emperor Wu-ti launched attacks against groups that pose threats against the empire. He deemed this the right decision to solve the problem right away. He was determined to win and sent troops after troops into the battlefield. Because of this, he was able to expand China's control. On another hand, he also exhausted their resources due to allocating most of the empire's income to the military forces. He needed to look for another way to expand their income. He did this by passing a decree that the state can monopolize the salt, wine, and iron.
<span>A central bank was needed to prevent future panics.</span>
1) The effect that explorers had on North America was that without these explorers, like Christopher Columbus, then the "New World" would have never been to be. It would have never been colonized.
4) Hello there, if you fellows might not know, my name is Christopher Columbus and I need YOU to help fund my journey. I will be exploring the unknown, think about that! One of your own people, making history. So please, help me and get me a crew. Thank you.
~I hope I helped! If the speech didn't make sense, please PM me. Thx~