What was the cause of slavery?

Slavery was introduced wind a Dutch ship traded African slaves for food in 1619. When White settlers were unable to find cheap labour they turn to the slaves imported from Africa.

The second , larger puritan colony of massachusetts bay was conceived as a "city upon a hill". but it also struggled with internal turmoil like the salem witch trials and external conflicts like king philip's (metacom's) war.

Ais the correct answer