Thanks to a series of laws regarding inheritance, the Yukon population has remained stable at about 30 million people for several centuries. Additionally, it is implied that the Yukon population is entirely white, and that the Yukons exterminated or deported all other ethnic groups that lived in the Confederacy. The evidence for this can be found in Doctor Murrey's discussions with Bruce (which see below), the racism of Judson's characters, and the fact that many American cities that had Spanish or Native American names are given new Anglo-Saxon or Latin names by the Yukons. For example, San Francisco was renamed "Grand Harbor", and Kansas City was rebuilt as "Centralia". Non-white characters exist only at the fringes of society, as merchant mariners or as bandits in the Southwest referred to as "Latin hordes". Most of the Yukon characters see foreigners, even the Yukons' Slavic, African and Indian allies, as little better than savages.