Ythrian History

Whereas the periods of interplanetary exploration and of the Grand Survey could each have been expanded into a series that would have become a sub-series of Poul Anderson's Technic History, the story of the exploration of Avalon is part of such a sub-series:

in "Wings of Victory," human explorers discover Ythri and make first contact with Ythrians;

in "The Problem of Pain," Ythrians with some human employees explore Avalon;

in "Lodestar," an Ythrian ship, the Gaiian, transports Nicholas van Rijn and Coya Conyon to Mirkheim for a confrontation with David Falkayn;

in "Wingless," human beings and Ythrians colonize the Hesperian Islands on Avalon;

in "Rescue on Avalon," these two species colonize the Coronan continent on Avalon;

in The People Of The Wind, human and Ythrian Avalonians successfully resist the Terran Empire;

in The Day Of Their Return, an Avalonian Ythrian is an agent both for the Domain of Ythri and for the Terran Empire against the Merseian Roidhunate;

in A Stone In Heaven, Dominic Flandry refers to the biracial culture on Avalon;

later, unfortunately, we know only of human and post-human civilizations in different parts of the galaxy.