Though both the Internet and the unprecedented popularity of the Harry Potter series have been a major influence in the development of fanfic, the concept in fact predates both. The earliest pieces of fanfic relate to the popular science fiction TV series Star Trek. Fans frustrated at the cancellation of the show began to write their own adventures, leading to privately published magazines known as fanzines. The first of these, entitled Spockanalia, was first published by Star Trek fans as far back as 1967.