What is the Periphery?

(n.) the outer limits or edge of an area or object; a marginal or secondary position in, or part or aspect of a group, subject or sphere of activity.
synonyms: edge, fringe, margin, boundary, outskirts, verge

Time and time again, we see artists pushing the boundaries, sometimes quite literally, as with the paintings of Georgia O’Keefe, whose lines and forms raced off the edge of the canvas. Or Pablo Picasso and Georges Braque who invented cubism to create paintings that appeared fragmented and abstract.