20th-century art abstract (or non-representational) art. Cubism, generated by Picasso, Braque, Metzinger, Gleizes and others rejected the plastic norms of the Renaissance by introducing multiple perspectives into a two-dimensional image. Futurism incorporated the depiction of movement and machine age imagery. Dadaism, with its most notable exponents, Marcel Duchamp, who rejected conventional art styles altogether by exhibiting found objects, notably a urinal, and too Francis Picabia, with his "Portraits Mécaniques". Parallel movements in Russia were Suprematism, where Kasimir Malevich also created non-representational work, notably a black canvas. The Jack of Diamonds group with Mikhail Larionov was expressionist in nature. Dadaism preceded Surrealism, where
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