Tracey Bashkoff, Curator, Collections and Exhibitions, and Megan Fontanella, Assistant Curator, Collections and Provenance, discuss the origins of the Guggenheim Museum collection, including German artist and future Guggenheim director Hilla Rebay’s advisory role, Peggy Guggenheim’s influential career as a gallerist, and the major gift of early modern art from the Thannhauser collection.