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In page Wampum:

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The introduction of European metal tools industrialized and colonized the production of wampum; by the mid-seventeenth century, production numbered in the tens of millions of beads.[5] Dutch colonists discovered the importance of wampum as a means of exchange between tribes, and they began mass-producing it in workshops. John Campbell established such a factory in Pascack, New Jersey which manufactured wampum into the early 20th century.[4]