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array(13) {
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  ["hash"]=>
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  ["language_front"]=>
  string(4) "X4c="
  ["language_front_tag"]=>
  string(4) "C9o="
  ["search_value"]=>
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  ["424e0ec548c5509d65917508006e586d-page"]=>
  string(4) "Xw=="
  ["424e0ec548c5509d65917508006e586d-perpage"]=>
  string(4) "XIQ="
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}

Directory of history departments and organizations in the United States and Canada - 19th ed. (1994)