Originally 17 galaxies were linked by tubes of focus time. As the universe expanded these tubes snapped, isolating galaxies onto themselves. Three billion years ago, when 11 galaxies were still joined together, the mythical Progenitors arose to begin the cycle of Uplift in which a Patron race aids a Client race to cross into full sentience. In return the Client gives the Patron 100,000 years of indentured servitude. Though the Progenitors have long since departed this plane of existence, before leaving they established the Library, other institutions and Galactic Law. (Or so the mythology goes.) Now after several billion years the Uplift Cycle remains unbroken and a myriad of Patron and Client races roam the remaining 5 linked galaxies believing that the Progenitors will some day return. An extensive compilation by Stewart Blandon.