Roger Bacon

Roger Bacon was an English Franciscan friar, philosopher, and scholar active in the 13th century. He studied and taught in the university world of Oxford and Paris, and he became known for arguing that serious learning should include mathematics, languages, and close study of the natural world.

He is best remembered for works such as the Opus Maius, written for Pope Clement IV, where he set out an ambitious program for reforming learning. Bacon wrote about optics, astronomy, language, and practical knowledge, and he often stressed that observation and experience matter alongside authority and argument.

Much about his life remains uncertain, including the exact year of his birth and death, which is often given around 1292 and sometimes 1294. Even so, his reputation endured for centuries because he came to represent a rare kind of medieval mind: deeply religious, widely learned, and unusually eager to test ideas against the world itself.