Solon's reforms entailed (notably) a cancellation of all debts (seisachtheia), the granting of citizenship to many stranger residents and the distribution of political rights according to a four-part class division based on property.
Bouchard, Elsa. "Archonship and reforms of Solon in Athens". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11159, accessed 21 May 2013.]