"Negro History Week"

Black History Month began as “Negro History Week,” which was created in 1926 by Carter G. Woodson, a noted African American historian, scholar, educator, and publisher. It became a month-long celebration in 1976. The month of February was chosen to coincide with the birthdays of Frederick Douglass and Abraham Lincoln.

http://www.history.com/topics/black-history/black-history-facts