Europe has surprisingly little genetic variety. Learning how and when the modern gene-pool came together has been a long journey. But thanks to new technological advances a picture is slowly coming together of repeated colonization by peoples from the east with more efficient lifestyles.
Ever wonder if Dad's grandiose claims of Khan blood hold water? Or if you have a genetic predisposition to Psoriasis? Get your DNA analyzed by 23andMe. Ordinarily, that's a $500 proposition, but we can hook it up for 99 bucks.
It seems like something out of a movie (and hey, it is), but there's some scientific evidence that we actually carry the memories of our ancestors with us in our genetic code. Apologies in advance to my hypothetical descendants.