Question: In what year did Thornton Wilder write his three-act play that would later be compared to Neil Young's Greendale?
Sentence (from "Greendale (album)"): Based on the saga of the Green family, the "audio novel" has been compared to the literary classics of Thornton Wilder's "Our Town" and Sherwood Anderson's "Winesburg, Ohio" for its complexity and emotional depth in exploring a small town in America.
Relevant evidence: Yes