According to Cooper there was "Early Cubism", (from 1906 to 1908) when the movement was initially developed in the studios of Picasso and Braque; the second phase being called "High Cubism", (from 1909 to 1914) during which time Juan Gris emerged as an important exponent (after 1911); and finally Cooper referred to "Late Cubism" (from 1914 to 1921) as the last phase of Cubism as a radical avant-garde movement.
There was "Early Cubism", (from 1906 to 1908) when the movement was initially developed by Picasso and Braque.In the second phase, "High Cubism", (from 1909 to 1914), Juan Gris emerged as an important exponent after 1911.Finally "Late Cubism" (from 1914 to 1921) was the last phase of Cubism as a radical avant-garde movement.
There was "Early Cubism", (from 1906 to 1908) when the movement was initially developed by Picasso and Braque.In the second phase, "High Cubism", (from 1909 to 1914), Juan Gris emerged as an important exponent after 1911.Finally "Late Cubism" (from 1914 to 1921) was the last phase of Cubism as a radical avant-garde movement.
Make the sentence simpler: According to Cooper there was "Early Cubism", (from 1906 to 1908) when the movement was initially developed in the studios of Picasso and Braque; the second phase being called "High Cubism", (from 1909 to 1914) during which time Juan Gris emerged as an important exponent (after 1911); and finally Cooper referred to "Late Cubism" (from 1914 to 1921) as the last phase of Cubism as a radical avant-garde movement. Output: