Dark, Chocolatey, Malty – Around the similar time to when Porter beer was being adapted to be aged at the brewery and sent out ready to be drunk, rather than being aged by the publican in his cellar, another amazing adaptation was bestowed on the people of Britain – Ex-Nottingham scholar J P Knight, in a bid to curb the number of accidents involving motor vehicles, adapted his knowledge of railway signalling to create something to help manage road traffic – the result was the very first traffic light!