ROGETSTHESAURUS
Roget's Thesaurus
Roget's Thesaurus is a widely used English language thesaurus, created by Dr. Peter Mark Roget in 1805 and released to the public on 29 April 1852. The original edition had 15,000 words, and each new edition has been larger. The Karpeles Manuscript Library Museum houses the original manuscript in its collection.The above text is a snippet from Wikipedia: Roget's Thesaurus
and as such is available under the Creative Commons Attribution/Share-Alike License.