A river of drink runs through Scotlands history " plague, murder, temperance and social reform are drenched in six iconic drinks (swallies, as the locals say). Alcohol is involved. Dangerous ideas and Susan Morrison lurk everywhere. This will not be entirely serious. Tea reviving Suffragettes and temperance women, coffee fuelling late night Enlightenment argy-bargy, burgundy spilling from goblets dropped by murdered royalty, whisky pouring into Prohibition America, Irn Bru baffling tourists trying to work out what that taste actually is, and water, the suspect carrier of disease and bringer of massive change to our cities.