The Wellfleet Historical Society hosts “Duck Creek Archaeology,” a talk with Steve Broker at the United Methodist Church, 246 Main St. in Wellfleet, on Wednesday, Aug. 18, 7 p.m. Duck Creek has been a communal dumping ground for over 200 years; Broker has been collecting artifacts from there for 50 years. Registration is free at wellfleethistoricalsociety.org.