<P> Special Dark is similar to a standard Hershey bar, but is made with a dark (or semi-sweet) variety of chocolate, and contains a higher percentage (45%) of cocoa solids, chocolate liquor and cocoa butter than milk chocolate . The Special Dark bar replaced the similar, if not identical, Hershey's Semi-Sweet bar in the company's product lineup in the early 1970s . </P> <P> Hershey's Special Dark is available in a variety of sizes . There are also Special Dark versions of Hershey's Kisses, chocolate syrup, chocolate chips, baking chocolate, cocoa, and Hershey's Nuggets . </P> <P> Hershey's Special Dark is a component of the traditional Hershey's Miniatures assortment first sold in 1939, when the Special Dark was called Semi-Sweet . </P> <P> In 2006, Hershey's began selling Hershey's Special Dark Miniatures, which included the plain Special Dark bar, along with dark bars with peanuts (similar to a Mr. Goodbar) and with crisped rice (similar to a Krackel). </P>

When did hershey's special dark come out