Wampum the spoken language is. Records and treaties are kept in this manner, and individuals could write letters to one another in this way. Wampum belts were used as a memory aid in oral tradition, and were sometimes used as badges of office or as ceremonial devices in Indian culture such as the Iroquois. The 1820 New Monthly Magazine reports on a speech given by chief Tecumseh in which he vehemently gesticulated to a belt, pointing out treaties made 20 years earlier and battles fought since then. The National Museum of the American Indian repatriated eleven wampum belts to "Iroquois" chiefs
Wampum metal tools revolutionized the production of wampum; by the mid-seventeenth century, production numbered in the tens of millions of beads. Dutch colonists discovered the importance of wampum as money for 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. The Iroquois used wampum as a person’s credentials or a certificate of authority. It was also used for official purposes and religious ceremonies, and it was used as a way to bind peace between tribes. Among the Iroquois, every chief and every