
It's been 100 years since off-road running – today more commonly known as trail running – was included as an event at the Olympic Games and now, a group of intrepid runners wants it back.
The last time cross-country running was included in the Olympics was at the Paris Games on July 11, 1924. Footage from the event, which you can watch below, reveals runners took on a difficult 10k course combined with extreme weather conditions of over 104°F (40°C) and noxious fumes emitted from a power plant near the course. As a result, only fifteen of the 38 starters crossed the finish line. After the event, the Red Cross and local police spent hours searching for runners who had passed out on the course.