ABBA remains the most successful act ever to come from Scandinavia. The group topped worldwide charts during the mid-to-late 1970s and gained widespread airplay during the early 1980s, selling many hit singles and albums. Indeed, the group sold "more than 350 million records, all but one being self-penned." They were the first act from the European continent to become a regular fixture on the charts of the anglophonic world (Britain, North America, and Australia), and their success subsequently opened the doors for many other European acts. Their lasting legacy is the legitimisation of the Swedish music industry as a mainstream player.