9 books in series

Hidden History

Hidden History is a 9-book series with 9 primary works first released in 1992 with contributions by Terry Pratchett, Harry Gratwick, Berry Craig, Randol B. Fletcher, Carney Rhinevault, Tatiana Rhinevault, Margaret Middleton Rivers Eastman, J.D. Chandler, James B. Jones Jr., and Robert Tanzilo.

Hidden History of Milwaukee
Hidden History of Maine
Hidden History of the Lower Hudson Valley:: Stories from the Albany Post Road
Hidden History of Kentucky in the Civil War
Hidden History of Civil War Charleston
Hidden History of Civil War Oregon
Hidden History of Civil War Tennessee
Hidden History of Portland, Oregon
Lords and ladies