Final answer:
Alcuin of York significantly contributed to the Carolingian Renaissance through innovations in handwriting and education.
Explanation:
Alcuin of York made the most important contributions to the Carolingian Renaissance. He was a scholar who perfected the Carolingian minuscule script, which revolutionized handwriting for its clarity and readability. Additionally, Alcuin popularized punctuation marks, aiding in the revival of classical education.
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