Cubism has been defined in different ways by artists, critics and historians. Some have written about cubism as a form of plastic geometry.
At Section d'Or in 1912, Guillame Apolonaire gave a lecture outlining 4 types of Cubism :
Including Picasso and Braques
Le Fouconnier - who didn;t break fully with traditional perspective
Duchamp, Picabia, Delauney
those jumping on the bandwagon!
Coined by Juan Gris a posteriori . Goes from 1910 to 1912 in France. Main practiced by Braque
until around 1919, when the Surrealist movement gained popularity.
English art historian Douglas Cooper describes three phases of Cubism in his book, The Cubist Epoch.
1906 to 1908 - developed in the studios of Picasso and Braque;
1909 to 1914 during which time Juan Gris emerged as an important exponent (after 1911)
from 1914 to 1921) as the last phase of Cubism as a radical avant-garde movement. Douglas Cooper's restrictive use of these terms to distinguish the work of Braque, Picasso, Gris (from 1911) and Léger (to a lesser extent).
The assertion that the Cubist depiction of space, mass, time, and volume supports (rather than contradicts) the flatness of the canvas was made by Daniel-Henry Kahnweiler as early as 1920,[15] but it was subject to criticism in the 1950s and 1960s, especially by Clement Greenberg.[16] <wikipedia>
see w:Cubism