Usain Bolt is a living legend, renowned for his incredible speed and athleticism. He is the fastest man alive, having broken world records in the 100-meter and 200-meter sprints. He is the first man to ever break the 10-second barrier
From Wikipedia
Usain St. Leo Bolt is a Jamaican retired sprinter. Widely regarded as the greatest sprinter of all time, he is an eight-time Olympic gold medalist and the world record holder in the 100 metres, 200 metres, and 4 × 100 metres relay.