Layered over the historical fiction is a sci-fi element: The main character is a modern-day barman, Desmond Miles, who is forced to travel through time to relive the story of his ancestors and collect artefacts.
Lives extended, cancers (and a menagerie of other diseases) cured is almost like sci-fi medical technology come true (there may be more science fiction references as you read onward).
Named after Hugo Gernsback, the editor of groundbreaking sci-fi magazine Amazing Stories, the Hugos (originally the Science Fiction Achievement Awards) have been awarded annually for science fiction and fantasy writing since 1953.