Geoffrey Chaucer was a famous English poet who lived in the 14th century. He is best known for his work, The Canterbury Tales, a collection of stories told by a group of pilgrims traveling to Canterbury Cathedral. Chaucer's writing is celebrated for its vivid characters and humor, as well as its insight into medieval society. Chaucer is often called the "Father of English literature" because he was one of the first writers to use the English language in a significant way. Before him, most literature was written in Latin or French. His use of English helped to shape the language and inspired many writers who came after him.