Democratic Senate candidate Elizabeth Warren acknowledged for the first time late Wednesday night that she told Harvard University and the University of Pennsylvania that she was Native American, but she continued to insist that race played no role in her recruitment.

“At some point after I was hired by them, I … provided that information to the University of Pennsylvania and Harvard,’’ she said in a statement issued by her campaign. “My Native American heritage is part of who I am, I’m proud of it and I have been open about it.’’

Warren’s statement is her first acknowledgment that she identified herself as Native American to the Ivy League schools. While she has said she identified herself as a minority in a legal directory, she has carefully avoided any suggestion during the last month that she took further actions to promote her purported heritage.

When the issue first surfaced last month, Warren said she only learned Harvard was claiming her as a minority when she read it in the Boston Herald.

Warren’s new statement came after the Globe asked her campaign about documents it obtained Wednesday from Harvard’s library showing that the university’s law school began reporting a Native American female professor in federal statistics for the 1992-93 school year, the first year Warren worked at Harvard, as a visiting professor.

A campaign official said they had no records indicating that she had informed Harvard of Native American heritage that year.

The official further said that Warren had been unable to answer questions about the issue before now because she had forgotten many of the details and had asked her campaign to thoroughly review the evidence. The campaign declined to say whether Warren provided the information to Harvard and Penn verbally or by checking a box on a form.