Dada was an art movement that began in the early 20th century, around 1916, as a reaction to the horrors of World War I. It challenged traditional ideas about art and culture, embracing chaos and absurdity. Dada artists, like Marcel Duchamp and Hannah Höch, used unconventional materials and techniques, often creating works that were playful and provocative. The movement was not just about visual art; it also influenced literature, music, and performance. Dadaists believed that art should reflect the irrationality of life, leading to the creation of works that often seemed nonsensical. This spirit of rebellion paved the way for later movements like Surrealism.