Giordano Bruno (1548 – 1600), born Filippo Bruno, was an Italian Dominican friar, philosopher, mathematician, poet, and cosmological theorist. He is known for his cosmological theories, which conceptually extended the then-novel Copernican model. In addition to cosmology, Bruno also wrote extensively on the art of memory, a loosely organized group of mnemonic techniques and principles. Other studies of Bruno have focused on his qualitative approach to mathematics and his application of the spatial concepts of geometry to language.