Global Commodities: Trade, Exploration and Cultural Exchange This link opens in a new windowThis resource brings together manuscript, printed and visual primary source materials for the study of global commodities in world history. The commodities featured in this resource have been transported, exchanged and consumed around the world for hundreds of years. They helped transform societies, global trading operations, habits of consumption and social practices. The fifteen commodities explored in this resource are: chocolate, coffee, cotton, fur, opium, oil, porcelain, silver and gold, spices, sugar, tea, timber, wheat, wine and spirits. Provided by Adam Matthew.