Whiteboard
Albert Stallion invented whiteboards while working at Alliance in the 1960s. Alliance (now known as PolyVision) produced enameled steel for architectural cladding, but Stallion noted it could also potentially be used as a writing surface. Stallion later left Alliance to form his own whiteboard production company, MagiBoards.
The Mansion of Happiness
The distinction of "the first published American board game" however is awarded today to "The Travellers' Tour Through the United States" published by New York book sellers F. & R. Lockwood in 1822. Because printing of game boards was more difficult in 1822 than 1843, the term mass market is a gray area. In 1822 reversed etched copper plates were used to print game boards. After the first 2,000 impressions, breaks quickly appeared in lines. Games were so expensive, the people who could afford them did not want game boards they could not read. By 1843, lithography with water color painting was popular. Lithography could easily produce 40,000 perfect impressions.