Exactly 100 years ago - March 29 1924 - the first ever organised off-road motorcycle race was run by the Camberley club on their local heath in Berkshire, England.
Called the Southern Scott, it was to rival the famous Scott trial in the north, where riders had to complete sections without putting their feet down or stopping.
But the Southern Scott was the first race where the fastest man won - and 'scrambling' was born. Later rechristened motocross, this first hour-long event was won by local man Arthur Sparks on his Scott machine at an average speed of almost 25mph.
So 100 years on, the now-defunct Camberley club was re-started as the official organisers of the Scramble 100 event on the same land used for the original event. Almost 200 riders turned up on bikes ranging from pre-war machines - and even a Scott like Mr Sparks rode - and classic machines to retro bikes from the 1970s and 80s, and even a modern class that included big road bikes like the Yamaha Teneres and even a Scott Varg electric bike.
And the racing was two, hour-long scrambles per class on an eight-mile course, with an hour long 'gentleman's lunch break' in the middle.
Flagged away by 1981 world 250 motocross champion Neil Hudson, spectators included the local mayor Pat Tedder and even John Sparks, the son of the winner 100 years ago.
So let yourself explore the Scramble 100 event with some of the cool bikes, riders and a truly historic dirt bike event.