The text of this post is copied from here.
..a complicated colonial society. Seven centuries earlier, scientists wanting to study the unusual natives of the planet Dido which is unsuitable for human habitation colonized another planet in the same system, Aeneas, where they established a University that attracts human and non-human students from other systems. Survival in the sparse Aenean environment required cultivation of large land areas with both native and imported plants and animals. Horses and green six-legged stathas were imported as transport animals. During the Troubles, “Landfolk” relationships became semi-feudal and the University incorporated military training into its curriculum. Near the main University campus is a statue of Brian McCormac who cast out nonhuman invaders.
Later immigrants seeking a refuge or a new start are excluded from the tri-cameral legislature by a property qualification for the franchise but form subcultures: tinerans, Riverfolk, Orcans and highlanders. Orcans guard ruins left by space-traveling “Ancients.” “Lucks,” small pets kept in Tinerans’ caravans, are telepathic parasites left by the Ancients. Most Townfolk, belonging to ancient guilds, identify with scientists and squires. However, industrialization in the urban area known as the Web has produced manufacturers, merchants and managers whose interests are closer to those of the Empire which forcibly annexed Aeneas after the Troubles and re-occupied it after Hugh McCormac’s rebellion. Chunderban Desai, High Commissioner of the Virgilian system, consults Thane of the University and Jowett of the Web about McCormac’s Landfolk nephew who will inherit tri-cameral Speakership but meanwhile attacks Imperial troops, then hides among tinerans before traveling with Riverfolk to meet the new Orcan prophet.
I summarize Aenean society in order to convey the richness of detail in Anderson’s fictitious planets.