Early this morning, in the thin humid air of Iten, Kenya, dozens of incredibly lean, toned men woke up, laced up their tennis shoes, and set out the door to run on long dirt trails- not running to escape from anything, but for everything, international success, and the fame and fortune that accompanies it. Cruising along at unyielding paces, these packs of men, and others like them scattered throughout Kenya and it’s neighboring country of Ethiopia, are some of the present, and undoubtedly the future’s, best professional distance runners in the world. East Africans like these, pounding along the mountain trails this morning, in the past 50 years or so, have shown incredible and undeniable dominance in the sport of mid to long distance running. In fact, Eastern Africans, predominantly Kenyans, currently hold the men's world record in every running event between the relatively short 800 meters to the lengthy marathon (IAAF: World Records). They hold such a strong grip on the sport of running that 26 of the last 29 Boston Marathons have been won by Kenyans or Ethiopians, primarily by Kenyans, and that astoundingly high number number is raised even higher to 27 East African wins when counting American Meb Keflezighi, who was born and raised in Eritrea, a country directly north of Ethiopia. What is even more remarkable about their unrelenting success is that of these elite African runners, a large majority all originate from the same Kenyan tribe: the Kalenjin, a relatively small group of five million people that inhabit the western side of the country, and from whence the majority of internationally successful African runners were raised. To help give a sense of scale of the Kalenjin dominance in distance running is the fact that only 17 American men throughout history have ever run under 2:10 in a marathon, an exceptionally elite time, while a whopping 32 Kalenjin achieved this feat in October 2011 alone (Warner). Unrelenting success such as this has, of course, led many to postulate on what their great achievements can be attributed to.