and the Trans-Neptunian Asteroid Belt. NEPTUNE: The Planet that was Discovered Before it Was Seen. Until near the end of the eighteenth century the realm of Saturn marked the frontier of interplanetary space. Perhaps no one had previously suspected the existence of planets beyond the boundary line of Saturn's orbit.
Slavery was especially common in the colony of south Carolina because. Slavery was especially common in the colony of south Carolina because it grew more corn and wheat than any other southern colony.
Slavery in America started in 1619, when a Dutch ship brought 20 African slaves ashore in the British colony of Jamestown, Virginia. Throughout the 17th century, European settlers in North America turned to African slaves as a cheaper, more plentiful labor source than indentured servants, who were mostly poorer Europeans.