Join members and friends of the Lenape Nation of Pennsylvania at the signing of the "Treaty of Renewed Friendship." This once-every-four-year tradition commences with an opening prayer and the passing of the wampum, an Eastern Woodlands ritual that seals bonds of trust and responsibility. Strings and woven belts of wampum have been made for centuries to commemorate treaties or historical events. In 2010, the Penn Museum accepted a string of wampum in recognition of its collaborative work with Lenape peoples. On August 13, the wampum will be passed to the Delaware Riverkeeper Network, an advocacy organization working throughout the Delaware River Watershed.