Here are three things to know for Saturday, Feb. 24:. 1. Black History Month with Marcia Herman-Giddens: Today, 2-3 p.m., Harmony Hall, 1615 River Road, White Oak. Author will speak about her book “Unloose My Heart: A Personal Reckoning with the Twisted Roots of My Southern Family Tree.” Information: 910-214-9992 or [email protected].