The Andar invasion had a deep impact upon Tympanian society, but the culture of Tympania was to prove irresistibly seductive to the Andar invaders, and in time they were to come to abandon many of their own customs in favor of those of their subjects. The Andar themselves were a non-literate warrior culture with a polygamous family structure and a religion based on aristocratic ancestor-worship. Within two generations of the invasion, the invaders had converted to the Holy Church, abandoned polygamy, and accepted Tympanian arts and letters as a fundamental part of their new aristocratic culture.
To the Tympanians, the Andar introduced the concept of land ownership and the system of manorialism, along with the entire body of enmeshed ideas of fealty and fief on which such a political structure depends. They also brought with them new ideals of honor and martial virtue, as well as transmitting to the Tympanians the Andar love of hunting and ritual combat. Traces of Andarean ancestor-worship survived both in the burial practices of the new Tympania, which became far more concerned with preservation and entombment than they had previously, and in the Cult of the Saints, which reached a new flowering after the Andar invasion. The Andar also had their effect on the language of the people of Tyr and Chaeronia, which although it remained rooted in Cholaeic, took on Andarean inflections and grammatical structures. This language is now known as Tyrrhonian.
