Final answer:
Monastic communities played a critical role in the revival of learning during Charlemagne's reign.
Step-by-step explanation:
The Monastic communities were critically important to the revival of learning during Charlemagne's reign. Charlemagne believed that education was essential for his empire and established schools in monasteries and cathedrals. Monks were entrusted with the task of preserving and copying ancient manuscripts, which helped in the preservation and transmission of knowledge.
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