The Dark Ages (Europe) after the Fall of Rome

Literacy was lost- Dark Ages - History, Bible Reading 
Loss of Art, Classical Culture, Language-Latin
Loss of Roman Army- loss of Pax Romana- Roman Peace -Destruction of Roman Roads
Loss of Roman Roads- loss of Trade and Exchange of Ideas, Travel was dangerous
Loss Of Technology, Aqueducts, Engineering, Education, etc.
Development of Feudalism-King, Church, Lords, Knights, Castles, {Peasants, Serfs } pawns -Game developed Chess