ProQuest's Expansion of History Vault Opens New Perspectives on American HistoryThe Ann Arbor database provider ProQuest says that later this year it will open content that has been largely inaccessible to global researchers with a significant expansion of its acclaimed History Vault, a five-year program to provide central access to the key archival collections that document the most important and widely studied topics of 18th- through 20th-century America.

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