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catholic-church × 100middle-ages × 19
religion × 15
europe × 10
christianity × 10
protestant-church × 7
pope × 7
spain × 6
spanish-empire × 6
17th-century × 5
california × 5
mexico × 5
crusades × 5
20th-century × 4
france × 4
social-history × 4
science × 4
papacy × 4
political-history × 3
byzantine-empire × 3
renaissance × 3
holy-roman-empire × 3
church × 3
reformation × 3
19th-century × 2
