Growing tensions between Athens and the island of Aegina led the former to expel the islanders from their home and to replace them with Athenian cleruchs (colonists who retained their original citizenship after installation in a new land).
Bouchard, Elsa. "Eviction of the Aeginetans by Athens". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11223, accessed 25 May 2013.]