Historical clue formulations

• Classic novel set in rural Nebraska — 2024-06-02
• Willa Cather novel whose title ends with an exclamation point — 2017-11-10
• First novel of the Great Plains trilogy — 2016-05-27
• Start of Willa Cather's Great Plains trilogy — 2013-03-03
• Willa Cather novel — 2010-03-30
• First novel in Cather's "prairie trilogy" — 2007-06-23
• Classic novel with the heroine Alexandra Bergson — 2007-04-14