Who Am I????

in society today race is an existing issue. most poeple are judged on how they look and their ethnicity instead of who they are on the inside. some people dont even know their family background. me, i am African American. Both of my parents are black. but i would like to research my history. i want to know if my ancestors were slaves and got whooped by their slave masters. or if somewhere down the line that a slave master raped my ancestor and created a mullato baby, which wuld explain why me and my grandmother( my fathers mother and my mother mother) are very light skinned. these are the questions that i would like to have answered.