You can now track your own ancestry through a simple DNA test.
[That's DNA pictured here... or an artist's rendition anyway. ]
National Geographic is sponsoring something called the Genographic Project, which maps human migration patterns.
You can pay $100 (ouch, I know), and send for a kit to collect your DNA (a swab of the cheek), send it in.
You will get a report and mapping of where your ancestors came from, and (if you choose) participate in the larger mapping project, which be going on for several years.
Very very cool. Here’s the link for general info about the Genographic Project.