Renewal (Federation)

The Renewal was an event in the Federation of the future in which every fifty years all artwork and similar aspects of culture would be destroyed and citizens minds wiped.

Renewal was opposed by the Archivists, who secretly saved works of art in the Yolja Citadel on Bajor. When Benjamin Sisko, Jadzia Dax and Worf accidentally time travelled to the 34th century, they were able to convince the Federation leaders on Bajor to not undertake the Renewal. (SS DS9 (The Façade of Fate))