Byline: Elena Ferrarin email@example.com
Gail Borden Public Library patron Diana Carson had barely started to check out the annual Black History Family Festival on Saturday in Elgin when she learned something new.
"I read about the Buffalo Soldiers; I didn't know about them," said Carson, of Elgin, referring to African-American cavalrymen who served in regiments formed beginning in 1866.
Carson's second stop was a children's crafts station, where her sons Demetrius, 6, and Darius, 9, were working on coloring drawings of traffic lights. The invention of the traffic light is credited to Garret Morgan, an African-