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medieval-church × 74church-history × 41
catholicism × 39
history × 13
papacy × 12
crusades × 9
schism × 5
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communion × 4
monasticism × 4
marriage × 3
civil-government × 3
heresy × 3
bible × 2
soteriology × 2
christology × 2
virgin-mary × 2
church-fathers × 2
reference-request × 2
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