Join local historian and author John Muller for the a walking tour, “Frederick Douglass in Cambridge,” which will share the importance of two visits Dr. Douglass made to Cambridge, Maryland in 1877 and 1878. The tour will start at Long Wharf and conclude on Pine Street in front of Bethel AME Church. There are two tours scheduled for Sept. 4: one from 10am to 12pm, and another from 1:30 to 3:30pm. Tickets cost $22.85 for adults; $12.24 for public school students. Find out more and buy tickets.