So, I was thinking about the history of sleuthing/detecting in fiction/literature and I decided to do some digging. I’d heard of Anna Katherine Green, and I’d heard about her character, Violet Strange, who’s credited as the first female sleuth in fiction.
But Green is also known as the mother of American mystery, and she’s credited as writing and publishing what’s known as the first American detective novel, The Leavenworth Case, in 1878 (image below). It’s available at Amazon, if you’re interested (reprinted, obviously). This book, featuring detective Ebenezer Gryce, was published nine years before the debut of Sherlock Holmes.
source: C. Martinelli’s blog