Alfred Stieglitz (1864–1946) was an American-born photographer who was instrumental over his fifty-year career in making photography an acceptable art form alongside painting and sculpture. Many of his photographs are known for appearing like those other art forms, and he is also known for his marriage to painter Georgia O'Keeffe.
Stieglitz divorced his first wife in 1918, soon after she threw him out of their house when she came home and found him photographing Georgia O'Keeffe, whom he moved in with shortly thereafter. The two married in 1924.
Stieglitz' nudes are often considered the first photographs to recognize the artistic potential of isolated parts of the human body.