Fiction! Humans have actually been wearing shoes of some sort for at least 40,000 years.
Fact: The Barkley Marathons, commonly accepted as the most difficult foot race, takes place annually in Frozen Head State Park, Tennessee. The event, first run in 1986, is limited to 40 participants, and only 15 runners have ever completed it.
Fact! The oldest evidence of modern human foot anatomy, found in northern Kenya, are from about 1.5 million years ago.
Fact: The longest certified foot race, the Sri Chinmoy Self-Transcendence Race, stretches to over 3,000 miles. Completing this race is equal to running across the United States -- and then doing 11 more marathons.