The discovery of petroleum in the US threatened the livelihood of sperm whale oil chemist Robert Chesebrough.
But curious for opportunity, he travelled to the oilfields of Pennsylvania to discover workers had been soothing their cuts and burns with a residue left on the oil pumps.
Cheseborough would later extract a jelly from the residue, and patented it on May 14, 1878.
He named the product Vaseline, and was such an advocate that he would eat a spoonful of it every day.
Queen Victoria was so taken with Vaseline that she granted Cheseborough a knighthood.