Mitochondrial DNA is passed from mother to children, both male and female, unchanged and it mutates at a predictable rate; i.e., the more the genetic mutations in the DNA, the more ancient the origin of the population. Using these facts, some scientists are studying mitochondrial DNA to try to trace back the origins of the human race. Using this method, the scientists have traced the human race to one female in Africa several million years ago. Then they traced the migration patterns of her descendants as they spread across the earth. A documentary will be shown that traces the history of Mt-DNA analysis. We also discuss the impact of Mt-DNA on family history and how it can validate maternal lines.