Glass beads became a commodity that explorers took with them as they travelled to the Americas, Asia and Africa beginning in the 16th c.  Beads became the most sought after gift that European explorers would take with them; the demand was tremendous.  To the tribes of Africa, these colorful beads became important components in both their rituals and personal adornment.  Natural resources were plentiful on the African continent, but methods to produce the beautiful glass beads they desired were not.  Chevron as well as millefiori beads and white hearts travelled world wide and are favorites among collectors today.