English philosopher Roger Bacon is known as _______.

Roger Bacon, byname Doctor Mirabilis (Latin: “Wonderful Teacher”), (born c. 1220, Gloucester, England — died 1292 in Oxford),
- An English Franciscan philosopher and educational reformer who was a major medieval proponent of experimental science.
- Bacon studied mathematics, astronomy, optics, alchemy, and languages.
- He was the first European to describe in detail the process of making gunpowder, and he proposed flying machines and motorized ships and carriages.

Source: Britannica