Question: Boardwalk Empire was inspired by a book about a political boss who was convicted and imprisoned in what year?
Sentence (from "Boardwalk Empire"): Winter, a Primetime Emmy Award-winning screenwriter and producer, created the show, inspired by the book "Boardwalk Empire: The Birth, High Times, and Corruption of Atlantic City" by Nelson Johnson about historical criminal kingpin Enoch L. Johnson.
Relevant evidence: Yes