Question: What is the birthdate of this Ukranian former pole vaulter, who started his path to Olympic success from Soviet Sports schools?
Sentence (from "Sergey Bubka"): Bubka was twice named Athlete of the Year by "Track & Field News", and in 2012 was one of 24 athletes inducted as inaugural members of the International Association of Athletics Federations Hall of Fame.
Relevant evidence: No