In 1851 a stagecoach robbery took place on the Great Road from Airdrie to Newbridge, where the equivalent of half a million pounds in today's money was stolen. One of the culprits dressed up as a woman to help steal the money which was making it's way between the Glasgow and Edinburgh branches of the Commercial Bank of Scotland.
You can read more about it in Hynd-Brown's Past and Present here
There are a few versions of the story - one of them here
In addition, broadsheet poems were written at the time about George Gilchrist, the ringleader of the robbers, and owner of the stagecoach.
You can read one of them here
In January 2016, a re-enactment was performed.