Most Christians, and non-Christians have the same question in general, where did the different races come from? Being Christian I had wondered this myself. In class one day we watched a Christian speaker video that really cleared things up. Adam and Eve were the first 2 people on Earth,and of course had to have the right genes to pass on dark, medium, or light skin. That menes that Adam and Eve had both the dark gene(BB) and the light gene(aa) that means that they both carried both the dark gene and the light gene. Adam and Eve were therefor medium colored. Their children were either dark, light, or the same medium color. Once Adam and Eve had more children and those children had children there was a big clump of people with all different skin colors. Then hundreds of years later when the people revolted against God and built the Tower of Babel, God separated them by making them each have different languages. The people had to group together with others of their own language and move to other regions of the planet. Noah's (Noah from the Ark) had 3 sons Shem, Ham, and Japeth. Each of the three sons moved with their wives to a different continent, Shem-Asia, Ham-Africa, and Japeth-Europe. Each carrying their own gene with them. That's how the world became devided and different races became. But the trueth is we are all one race because we came from the same race. No one is black or white, they just have more or less pigment in their skin :) This is actually relevent today because there has been "mixed" couples who have had one light child and one dark child!
-So if you have questions just ask but I hope it at least cleared some things up :)
-So if you have questions just ask but I hope it at least cleared some things up :)