References for Social Pyramid---
http://spicegal.hubpages.com/hub/DOES-FEUDAL-AND-CASTE-SYSTEM-STILL-EXIST-IN-INDIA
Social Studies World
History. 6th. Orlando, Florida: Harcourt, 2007. 747. Print.
pdfcast.org
www.historyhaven.com
Social Studies World
History. 6th. Orlando, Florida: Harcourt, 2007. 747. Print.
pdfcast.org
www.historyhaven.com