how old is usain bolt of jamaica
In 2008, 21-year-old Usain Bolt proved Jamaica's dominance in the 100 m - not his favoured event - first running 9.76, becoming second on the all-time list and then on 1 June 2008 he ran 9.72, breaking the 100 m world record held by compatriot Asafa Powell (9.74 secs) by two hundredths of a second.