Cicero Township, Cook County, Illinois. Geographic Names Information System. United States Geological Survey; United States Census Bureau 2009 TIGER/Line Shapefiles; United States National Atlas
Feudalism is defined as a Medieval European political, economic and social system from the 9th to 15th century.
Feudalism - Historiography. 1  The idea of feudalism was unknown and the system it describes was not conceived of as a formal political system by the people living in the Medieval Period. This section describes the history of the idea of feudalism, how the concept originated among scholars and thinkers, how it changed over time, and modern debates about its use.