Answer:
The main feature is that the Justices are not elected by the people.
Explanation:
The US Supreme Court Justices are not elected democratically by the people but they are instead nominated by the President and then after their nomination confirmed the the US Senate. Furthermore, they are serving indefinitely as long as they uphold the good behavior and can cast down laws passed as unconstitutional by the officially elected representatives.
In the early 1700's South Carolina raised the import duties on slaves coming from the West Indies, which most likely resulted in C; More slaves being imported directly from Africa. This is so because it was relatively cheaper to import directly from Africa opposed to the West Indies.
August 28, 1963 if you needed the year.