What contribution did the photography separation school make to the development direction of artistic photography in the 20th century?

19 at the turn of the 20th century, the rise of impressionism, which fought against the traditional academic school, led to the artistic separation movement. Alfred of photography? A group of American photographers, represented by Stiglitz, set up a photography group called "Photo Separatists" in new york. The original purpose of the photography branch was to devote itself to painting-style photography. After the 1920s, photo photography declined day by day. The school of photography separation initiated the development direction of artistic photography in the 20th century.