Trade beads Trade beads Trade beads (sometimes called aggry and slave beads) were otherwise decorative glass beads used between the 16th and 20th century as a token money to exchange for goods, services and slaves (hence the name). Trade beads were used to African resources by early Europeans. This included African slave trade. The beads were integrated in Native American jewelry using various beadwork techniques. Aggry beads are a particular type of decorated glass bead from Ghana. Made to ease the passage of European explorers and then traders mainly across the African continents, the beads were made throughout Europe although the Venetians
Shell Chemicals Shell Chemicals Shell Chemicals is the petrochemicals arm of Royal Dutch Shell. The name "Shell Chemicals" refers to the nearly seventy companies engaged in chemicals businesses for Shell, which together make up one of the largest petrochemical producers in the world. Shell companies first entered the chemicals industry in 1929, via a partnership with Koninklijke Nederlandsche Hoogovens en Staalfabrieken in the Netherlands called NV Mekog, which manufactured ammonia from coke-oven gas produced at the steelworks in IJmuiden. Meanwhile, in the United States, the Shell Chemical Company (founded 1929) began the world's first production of ammonia from natural gas in California