Native peoples of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians. Europeans were used to these diseases, but Indian people had no resistance to them.
The Europeans had sicknesses that the Native Americans were not exposed to so they died rapidly. They also used the Native Americans as slaves, but since they are dying the Europeans took slaves from Africa. But not all of it is bad because there was the Columbian Exchange took place and North America, South America, Africa, and Europe all took place in the trade.
If you are not interested in a topic say political issues, you will just say what you catch here and there from friends, TV, family, and radio. You wont study it to tell what you really think.
The US Supreme Court has been the country's top legal authority since 1788, responsible for interpreting and deciding issues based on federal law and the constitution. Although their decisions are largely based on formal arguments of justice, each president appoints a judge (at each vacancy) who has a more favorable interpretation of the government's political tendencies.
