Mencken Day: Honoring the Memory, Career & Bequest of Henry Louis Mencken. The 2017 Mencken Memorial Lecture "When America Was Great and Baltimore Knew Better" by Darryl G.Hart at the Maryland Historical Society, 201 West Monument Street, Saturday, September 9, 2 p.m. The Mencken Room of the Central Library is open to the public from 10 a.m. to 5 p.m., 400 Cathedral Street.