Chocolate was known since at least 350 BCE, but the origin of chocolate milk is not so clear. The Natural History Museum in Britain credits Sir Hans Sloane, an Irish botanist who spent some time in Jamaica in the early 1700s. He described the cocoa drink that the local people him as 'nauseous', but that mixing it with some milk made it more palatable. He then introduced the recipe to Europe. However, according to historian James Delbourgo, people in Jamaica already brewed “a hot beverag from shavings of freshly harvested cacao, boiled with milk and cinnamon” as soon as at least 1494.