This is the Hall of Science in New York, begun by Frances Wright and Robert Dale Owen, based on an idea for secular meeting-places pioneered by Robert Owen in Britain. The building housed a small publishing operation and a lecture hall. In addition to Owen and Wright, many guests spoke to New York secular crowds here, including Dr. Charles Knowlton. In this sense, Knowlton is more than the author of a pamphlet used by British secularists to challenge censorship and blasphemy laws. He's part of a similar tradition of secularist organization that existed on both sides of the Atlantic in the 19th century.