After working as a draftsman, Bradley introduced the first lithograph press to Springfield, Massachusetts, in 1860. He printed and sold a new parlor game, “The Checkered Game of Life.” It was so profitable that he formed Milton Bradley and Company in 1864 to print games and manuals. In 1878, he reorganized his business as the Milton Bradley Company, which long retained its position as a leading American manufacturer of games and toys. In 1869, his press published the first US book on what topic? Discuss