The origin of the word "literature" can be traced back to the ancient Greek word "literature" which meant "literature and art." In medieval Europe, literature was regarded as an important art form, including poetry, novels, plays, essays, etc. In the 18th century, with the rise of the Enlightenment, literature began to receive more attention and recognition. Enlightenment ideologists advocated rationality, science, and critical thinking, emphasizing that literature should be a useful tool to spread knowledge and educate people. In the 19th century, literature underwent a large-scale transformation, forming new literary schools such as realism, romanticism, and modernism. These schools emphasized the uniqueness, authenticity, and criticism of literature, creating a precedent for modern literature. The literature of the 20th century experienced many changes and transformations, such as the world literature after World War II, the cultural confrontation during the Cold War, the rise of modern literature, and the development of post-modern literature. Literature in the 21st century has become an important field of global cultural exchange. The literary works of various countries influence and learn from each other. The origin of the word "literature" can be traced back to ancient Greek and became one of the main terms of modern literature in the 18th century. Today, literature has become an important part of human civilization, providing people with rich spiritual experience and inspiration.