Periodic Table of Black History each period represents African American's that contributed to one of the following accolades; Science, Engineering, Technology, Math, Literature (authors, poets, journalist, orators), Activist and Politicians, and athletes.Simply print on colored paper ; Use your own colors or follow the key below.Green: MathematiciansRed: Scientist, EngineersOrange: Authors, Poets, WritersBlue: Politicians and ActivistPink: Athletes