The fastest man on the face of this earth is Usain Bolt.
He holds the record for the 100M dash. But what about all the others before him? As we get prepared for the 2016 Rio Olympics, the New York Times put together a video of comparing all the medalists' performances in the 100 meter sprint since the 1896 Athens Olympics.
Check out the vid below.
This video really shows how much sprinters have improved over time. It also just shows how much of a beast Usain Bolt is.