← 1 - What is History and Middle Ages Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Primary Source an original source that informs directly, not through another person's explanation or interpretation Secondary Source information gathered by someone who did not take part in or witness an event Charlemagne The Frankish king that doubled his land and revived learning Feudalism Political system which is compromised of reciprocal obligations between classes Manorialism An economic system in which serfs work the fief given to them Third Crusade The crusade that the Christians won King John and the nobles They signed the Magna Carta Bacteria, fleas, and black rats Causes of the Black Blague