Timeline of History of Numbers (Display)This full color timeline portrays the development of Algebra and Geometry through the ages beginning at 30,000 B. C. until modern days. Designed for display and everyday use by students. Our timelines are constructed from specialized paper that is completely waterproof, will not tear or smudge even if it is wet. Because of the durability of the material there is no need for lamination. Dimensions: Small Size: 11" x 52" Full Size: 18" x 9 ft.