the next year. It was a success, and the company had difficulty keeping up with demand. The company continued to grow throughout the next several decades, producing games including Cluedo (released as Clue in North America), Risk, and Sorry! Parker Brothers marketed its first jigsaw puzzle in 1887. Parker also produced children's puzzles, as well as the Climax, Jig-A-Jig, Jig Wood, and Paramount lines. According to Jigsaw Puzzles: An Illustrated History and Price Guide, by Anne D. Williams, Parker Bros. closed the Pastime line in the 1950s and their die-cut puzzles were phased out in the late 1970s. Even after George Parker's death, the company remained family-owned until 1968 when General Mills purchased the company. After this, Parker Brothers produced the first Nerf ball. In the UK during the 1970s, Parker Brothers was the games division of Palitoy (also a General Mills company), and produced a variety of releases such as Escape from Colditz. In 1977, the company built its headquarters in Beverly, Massachusetts. The company began to produce electronic versions of their popular board games in the late 1970s and early 1980s. At this time, the company ventured into the toy market with the electronic action figure, Rom the Spaceknight, in 1979. Although the toy proved a failure, the licensed comic book published by Marvel Comics ran for years after the toy was discontinued. They also produced video games for various systems during the early 1980s, with home ports of many popular arcade games such as Konami's Frogger, Nintendo's Popeye, Gottlieb games such as Q*bert and Reactor, and the first video games based on the Star Wars films such as The Empire Strikes Back, Jedi Arena, Death Star Battle, and more. In early 1983, Parker Brothers spent US$15 million establishing a book publishing branch; their first titles featured the American Greetings franchises, Care Bears and Strawberry Shortcake. The branch published twelve titles by February 1984; sales of these books totaled 3.5 million units. Parker Brothers also operated a record label around the same time; one of its releases, based on Coleco's Cabbage Patch Kids and involving Tom and Stephen Chapin titled Cabbage Patch Dreams, was certified Gold by the Recording Industry Association of America (RIAA) in July 1984. In 1985, General Mills merged the company with their subsidiary Kenner; this new company, Kenner Parker Toys Inc., was acquired by Tonka in 1987. In 1988, Parker Brothers struck a deal