The French artist Jean- Francois Millet commented on the problem of divided social classes in nineteenth- century France in his monumental painting of works in a field, titled:

Red and orange? or not

Perspective is important because it enabled the 3 dimensional world to be translated into the 2d world of the picture plane. this had an immediate impact on the representation of reality in art and design. 

Atellan farce orignated in etruria italy