Flammable gas was first recognised in the UK as far back as 1667, according to the National Gas Museum.
During the years that followed and as the uses of gas were expanded, considerations towards health and safety increased.
However, it took a disastrous event some 300 years after that first discovery for the industry to wake up to the dangers and face its responsibilities.
In 1968, five people were killed when a gas explosion blew out some load-bearing walls in a 22-storey tower block at Ronan Point, Newham, in East London. An entire corner of the building collapsed and the event changed the face of the gas industry forever.