Hannu Rajaniemi — Birth Year: 1978

NoteThe Wikidata source explicitly states Hannu Rajaniemi's date of birth as '9 March 1978', which confirms the birth year of 1978 claimed in the fact-check request. The source is the official Wikidata entry (Q524579) for this person, and the date of birth field is clearly documented with references to both English Wikipedia and the Internet Speculative Fiction Database.