Alexander the Great didn't conquer Italy. Neither did he conquer China.
Alexander the Great was the leader of the hellenistic period in Greece and contributed to the creation of one of the greatest empires at the time which was spanning all around from the Greek peninsula all the way to Mesopotamia.
The Marshall Plan<span> </span><span>was an American initiative to aid </span>Western Europe<span>, in which the </span>United States<span> gave over $13 billion</span><span> in economic support to help rebuild Western European economies after the end of </span>World War II<span>. </span>
global warming
destruction of ozone layer
environment degradation
Religion? Hinduism features a social caste system