The Hilary Weston nonfiction prize ($75,000) went to Ordinary Notes by Christina Sharpe, writer and professor of Black History at York University. Ordinary Notes was recently also a finalist for the National Book Awards in the United States.
The most "historical" of the nonfiction nominees was John Vaillant's Fire Weather, noted here previously. Among winners, the most historical work would be In the Upper Country, a novel of slavery in Upper Canada and the Underground Railroad by Kai Thomas (New York Times review here).
Update, November 29: Since this posting, Fire Weather has also been picked as one of the New York Times' Ten Best Books of 2023 (five fiction, five nonfiction).
