FREDERICK, MD - Thousands of people visit historic sites in the our area each year, but few people know about the important roles African Americans played, especially when it comes to the Civil War and medicine. This is why the National Library of Medicine is teaming up with museums across the country to educate the public using a traveling exhibit.

Robert Hartman volunteers at the National Museums of Civil War Medicine on East Patrick Street in Frederick. He believes the contributions of African Americans is am important part of American history....