track and field
Tennis and triathlon are summer Olympic events. Track cycling is an Olympic event.
At London
200 metres.
The ancient Olympic Games began in the year 776 BC. The marathon was not an event of the ancient Olympic Games. This is a modern event that started in 1896.
It is one event in the sport Track and Field.
Approx. 1922.
Hurdles -------------------- Men's 100m
yes
track and field
16 years old for the entire Olympics event I think.
On a 400m track - 200m, 400m, 800m, 4x100m, 4x400m (and other non-Olympic distance relays)