In 1619, Johannes Kepler created one of the first mathematical studies of Tessellations. No more then 200 years later in 1891, the Russian crystapher E.S. Federav proved that every tilting of a plane is constructed in accordance to one of the seventeen different groups of Isometries. The most famous contributor was the Dutch Artist M.C. Escher (1898-1972), was a man famous for his "impossible structures". Such as Ascending and Descending, Relativity, Transformation Prints etc.