In the case of mother cities and colonies the relationship was unusual, because mother cities would normally strictly limit the right of return of their former citizens who settled in their colonies. Vanessa Gorman argues that Miletus used "isopoliteia" treaties to attract settlers from its colonies when the city was rebuilt after the Battle of Mycale in 479 BC. The resettlement of Teos around the second half of the sixth century by settlers from its colony Abdera might have been a similar case.