The theories on the origin of literary activities mainly included: 1. The origin of literature in ancient Greek mythology: It is believed that literature originated from the stories of gods and heroes in ancient Greek mythology. These stories inspired people's creation and became one of the earliest forms of literature. The origin of ancient Roman literature: The nobles and politicians who believed that literature originated in ancient Rome expressed their political views and emotions through writing love letters, poems, and speeches. 3. The origin of medieval literature: It is believed that literature originated from medieval knights and wizards who expressed their beliefs and beliefs through poetry, stories, and novels. 4. The origin of Renaissance literature: It is believed that literature originated in Italy during the Renaissance. They expressed their thoughts and beliefs by writing novels, poems, and plays. The origin of modern literature is believed to have originated from the Enlightenment in 18th century Europe. They expressed their thoughts and beliefs by writing novels, poems, and essays. Different theories on the origin of literature have different evidence and explanations, but they all believe that literature is an important part of human culture, with a long history and rich cultural content.