Roger
Bacon, was born in about 1220 AD. in England. He is
remembered for his work in mathematics, and as a early advocate of
the European "scientific" method. He was a student at the university
in Paris and later at Oxford in England. He became a Franciscan friar
during the 1250s. His works include writings in mathematics, alchemy,
and optics. He is known to have authored Compendium of the Study of
Philosophy (1272) and Compendium of the Study of Theology (1292).
During his life time he experimented with ideas about the development of gunpowder, flying machines, motorized vehicles, and telescopes.
Bacon died in about 1292 AD.
References
Asimov, I. (1964). Asimov's Biographical Encyclopedia of Science and Technology: The Living Stories of More than 1000 Great Scientists from the Age of Greece to the Space Age Chronologically Arranged. Garden City, NY: Doubleday.
Daintith, J., Mitchell, S., & Tootill, E. (1981). A Biographical Encyclopedia of Scientists. New York: Facts on File.
Howard, A.V. (1951). Chamber's Dictionary of Scientists. London: Chambers.
Ireland, N.O. (1962). Index to Scientists of the World, from Ancient to Modern Times: Biographies and Portraits. Boston, MA: Faxon.
McGraw-Hill (1966). McGraw-Hill Modern Men of Science. New York: McGraw-Hill.