Feudalism, in its most classic sense, refers to the Medieval European political system composed of a set of reciprocal legal and military obligations among the warrior nobility, revolving around the three key concepts of lords, vassals, and fiefs. Although derived from the Latin word feodum (fief), then in use, the term feudalism and the system it describes weren't conceived of as a formal political system by the people living in the Medieval Period. There's no broadly-accepted modern definitio… (More on Feudal)