The newspaper published an article Thursday citing documents from Harvard's library that show its law school reported a Native American female professor in federal statistics in 1992, when Ms. Warren was a visiting professor.

WSJ: Warren Says She Informed Universities of Ancestry

Last December, Google unveiled a gargantuan effort to scan the library collections of Harvard, Stanford, Oxford, the University of Michigan and the New York Public Library into an Internet database.

FORBES

Curious, Leape went to Harvard's vast medical library to see what had been written about preventing medical error.

FORBES: Magazine Article

The JFK School of Government at Harvard University in Cambridge -- miles away from the library in the Dorchester section of Boston -- was evacuated.

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The company is also retrieving books from libraries at several other leading universities, including Harvard and Oxford, as well as the New York Public Library.

NEWYORKER: Google��s Moon Shot

The JFK School of Government at Harvard University in Cambridge --- miles away from the library in the Dorchester section of Boston -- was evacuated.

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Directors of the digital library, first conceived in 2010, include officials from Harvard University and the University of Michigan and a former executive at Google Inc.

WSJ: Digital public library with vast archive opens

The number of full-time library workers is down 20% from the end of 2008, when there were more than 1, 000 positions, as Harvard centralizes functions such as preservation instead of handling them separately at each library.

WSJ: Economy Forces Harvard to Tighten Its Belt