The Benjamin Banneker Foundation is pleased to welcome Shana Keller to the 2017 Colonial Market Fair on June 10 and 11 from 10:00 - 4:00 at the Benjamin Banneker Historical Park and Museum. Ms. Keller is the author of Ticktock Banneker's Clock which was awarded Best STEM Book by the Children's Book Council. Her book encourages children to pursue their interests in math and science by telling the story of Benjamin Banneker. A self educated African American born in 1731, Bannek