What's in a Name, Roget

Almost all of us have heard of Roget's Thesaurus (a dictionary of synonyms). Roget was a British physician, natural theologian and lexicographer, best known for publishing, the Thesaurus of English Words and Phrases, a classified collection of related words in 1852, twelve years after he retired. He is also responsible for the invention of the slide rule, which allows a person to perform exponential and root calculations. In addition, he was a founder of the Society for the Diffusion of Useful Knowledge. It published information to people who were unable to obtain formal teaching or who preferred self-education. The Thesaurus is continually updated and still in print.