who created the rock and roll hall of fame???

Answer: Ahmet Ertegun

Question: who set up a five year plan for the operation of the soviet union?

Answer: Joseph Stalin

Answer this question: who walked over niagara falls on a tightrope??

Nikolas "Nik" Wallenda

Q: name the person who presided inc free india?A: J. B. Kripalani

Input: who wrote game of thrones season 7 episode 6?

Output: D. B. Weiss

Please answer this: when did the first harry potter book get published?
26 June 1997