This profile of artist Georgia O'Keeffe (1887-1986), who is known as the "Mother of American Modernism," focuses on her time as an art instructor at Columbia College in Columbia, S.C. It was there, in the fall of 1915 and the spring of 1916, that she found her voice with a series of abstract charcoal drawings that signaled a break with tradition and led her art?and career?in a new direction.