In 1974, Cleveland Museum of Natural History curator Dr. Donald Johanson discovered a humanlike fossil in the desert of Ethiopia. Nicknamed Lucy, the fossil was the oldest and most complete hominin skeleton known at the time. This event at the Cleveland Museum of Natural History will feature '70s-themed cocktails, a disco DJ, conversations with Museum scientists and astronomers, encounters with replicas of Lucy’s fossils, up-close looks at specimens from the museum’s paleontology collection, demonstrations of ancient stone tools, Lucy-themed trivia in Murch Auditorium and access to the Ralph Perkins II Wildlife Center & Woods Garden. The event begins at 6 p.m. Seventies-era attire is encouraged but not required.