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Middle Ages | Definition, Dates, Characteristics, & Facts | Britannica
Middle Ages - Wikipedia
Middle Ages ‑ Definition, Timeline & Facts - HISTORY
Middle Ages: Definition and Timeline - HISTORY
Middle Ages: Summary, Facts, and Timeline - World History Edu
The Middle Ages Portal | Britannica
History of Europe - Medieval, Feudalism, Crusades | Britannica
Middle Ages Definition & Meaning - Merriam-Webster
Middle Ages - Encyclopedia.com
Introduction to the Middle Ages - Smarthistory