From the 1400's, lighting which was both decorative and functional could only be found in palaces and homes of wealthy. The high cost of night-time illumination made them a status symbol. By the early 1700's, ornate cast forms with long, curved arms could also be found in the homes of the growing upper-middle class. But it wasn't after World War II that decorative chandeliers and wall sconces with candle sockets became a common type of lighting in most American homes. The fabric candelabra shade was later introduced to dress up all types of fixtures with candelabra sockets.