Monarchs are mostly popular figureheads. They keep the country stable with their presence. Some countries still have Absolute Monarchs (A King or Emporer with all power). Most kings and queens are exempt from being convicted of crimes, and can desolve parliament and remove anyone from the government.
Christopher Columbus is the explorer who is credited for discovering America. Of course, there were already people living in America at the time who we call Native Americans. There even was a European, Leif Ericsson, who had been to the Americas before. However, it was Columbus' voyage that started the exploration and colonization of the Americas.
Answer: Mongol leader Genghis Khan (1162-1227) rose from humble beginnings to establish the largest land empire in history. After uniting the nomadic tribes of the Mongolian plateau, he conquered huge chunks of central Asia and China.
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