Georgia O'Keeffe's first solo exhibition was held at the New York gallery 291 in 1917.
The gallery was founded and operated by photographer Alfred Stieglitz at 291 Fifth Avenue in Manhattan. It was originally known as the Little Galleries of the Photo-Secession and became widely identified by its street number, 291. Stieglitz organized O'Keeffe's first solo exhibition there in April 1917.
The exhibition displayed her watercolors, drawings, and other works. Stieglitz had received examples of O'Keeffe's work from her friend and former teacher Anita Pollitzer, and he recognized the force of her emerging style. Their professional relationship later became personal, and they married in 1924.
A common mix-up is treating 291 as merely an exhibition title. It was the gallery's name, derived from its address. The space was an important New York center for modern art and helped introduce American audiences to European avant-garde artists as well as innovative American work.