Cubism 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. Douglas Cooper's restrictive use of these terms to distinguish the work of Braque, Picasso, Gris (from 1911) and Léger (to a lesser extent) implied an intentional value judgement. Cubism burgeoned between 1907 and 1911. Pablo Picasso's 1907 painting "Les Demoiselles d'Avignon" has often been considered a proto-Cubist work. Georges Braque's 1908 "Houses at L’Estaque" (and related works) prompted the critic Louis
Immigration from China in the early 20th century Immigration from China in the early 20th century Significant Chinese immigration to the United States began with the California Gold Rush, in the late 1840s. Many of these immigrants were single men who worked for a time and then returned to China with their earnings. In subsequent decades, however, significant numbers of Chinese immigrants had settled permanently, and were competing for low-level jobs with other ethnic immigrant groups. Immigration from China was restricted by the Chinese Exclusion Act, passed in 1882. In all, 4,441 Chinese immigrants came to the USA through the Ellis Island Immigration Station, while others came to