The Ray Allen Billington Prize is awarded biennially by the Organization of American Historians to the author of the best book on the history of native and/or settler peoples in frontier, border, and borderland zones of intercultural contact in any century to the present and to include works that address the legacies of those zones. Each entry must be published during the two-year period January 1, 2021 through December 31, 2022. One copy of each entry, clearly labeled ÔÇ£2023 Ray Allen Billington Prize Entry,ÔÇØ must be mailed directly to the committee members listed in the scholarship website. Each committee member must receive all submissions postmarked by October 3, 2022. Bound page proofs may be used for books to be published after October 3, 2022 and before January 1, 2023. If a bound page proof is submitted, a bound copy of the book must be sent to each member of the committee postmarked no later than January 7, 2023. If a book carries a copyright date that is different from the publication date, but the actual publication date falls during the correct time frame making it eligible, please include a letter of explanation from the publisher with each copy of the book sent to the committee members.