What is one way that cases reach the supreme court

"Original jurisdiction" cases are rare, with the Court hearing one or two cases each term. The most common way for a case to reach the Supreme Court is on appeal from a circuit court. A party seeking to appeal a decision of a circuit court can file a petition to the Supreme Court for a writ of certiorari.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

this question makes no sense dude