Silly Putty was discovered in 1943 by James Wright who mixed boric acid and silicone oil together. It was introduced to the public in 1950 by Peter Hodgson. Crayola acquired the exclusive manufacturing rights to Silly Putty in 1977. The formulas are considered proprietary. While most of the information we have available about Mr. Wright and Mr. Hodgson is listed on our web site
http://www.sillyputty.com , many magazine articles have been written about them over the years. Please check with your local library to reference the Readers Guide to Periodic Literature. This is an annual index of magazine articles. In addition, the history of Silly Putty was featured on The History Channel and can be viewed by visiting
www.history.com/shows/modern-marvels/videos/inventions-of-war-silly-puddy. To view the manufacturing process for Silly Putty, please visit
www.sillputty.com/silly_science/silly_science.htm.