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.
Introduction. Slavery in America began when the first African slaves were brought to the North American colony of Jamestown, Virginia, in 1619, to aid in the production of such lucrative crops as tobacco.lavery was practiced throughout the American colonies in the 17th and 18th centuries, and African-American slaves helped build the economic foundations of the new nation. The invention of the cotton gin in 1793 solidified the central importance of slavery to the Southâs economy.