There is no precise definition of the term "Modern Art", although it usually refers to works produced during the period of 1870-1970. Typically, modern artists rejected previous Renaissance-based traditions, in favour of new forms of artistic experimentation. They used new materials, new techniques of painting, and developed new theories about how art should reflect the perceived world, and what their functions as artists should be. But if there is anything that separates Modern artists from both the earlier traditionalists and later postmodernists, it is their self-belief that art mattered: it had real value. Explore the Modern Art collection by Letitia Art Gallery.555