Hugo Gernsback
The Hugo Awards or "Hugos" are the annual achievement awards presented at the World Science Fiction Convention, selected in a process that ends with vote by current Convention members. They originated and acquired the "Hugo" nickname during the 1950s and were formally defined as a convention responsibility under the name "Science Fiction Achievement Awards" early in the 1960s. The nickname soon became almost universal and its use legally protected; "Hugo Award(s)" replaced the longer name in all official uses after the 1991 cycle.
Hugo Award
Prior to 2017, these could be awarded for the ten years that had a Worldcon where no Hugos were awarded: the conventions in 1939–41, 1946–52, and 1954. Retro Hugos under these rules were given five times: in 1996, 2001, and 2004 for 50 years prior, and 2014 and 2016 for 75 years prior. The Worldcons eligible in 1997–2000, 2002, and 2015 chose not to award Retro Hugos, and under these rules there would have been no more opportunities to award them until 2022 (for 1947).