The Museum at the End of Time, is a short story set in a far future in which all record of humanity has been lost. A  collective intelligence compiling a history of the universe discovers that, although Sol should have had intelligent life, no record exists that shows it participated in galactic civilization. A collective entity journeys to Sol and finds a museum on the North Pole of the Moon. The Rosetta  Stone that can unlock the mystery posed by the museum of a spacefaring civilization that never achieved interstellar travel is found in an ancient artifact from the dim prehistory of the Hemmen, an intelligent species that arose near Sol. The question that the collective faces is whether this civilization, which never achieved FTL travel, played any role in the history of galactic civilization.