The voice in the audio clip is unrecognizable. But it belongs to Hillary Clinton, who was making her first major public address 47 years ago this spring at Wellesley College. And if the voice is hard to place, it’s the words that are really difficult to reconcile with her present-day image.

The speech forms a famous part of Clinton’s biography. She was the first student commencement speaker in Wellesley’s history, and she drew national attention by channeling the frustration of Vietnam-era college students in response to the words of the Republican senator who preceded her on the stage. But until Wellesley released audio excerpts of her speech over the weekend, only the written transcript had been available in the public domain.

She was Hillary Rodham then, and you can hear what she sounded like as a 21-year-old senior in the spring of 1969. Her voice was softer, but no less assured than it is now. It had none of the Southern twang she acquired during the 18 years she spent in Arkansas—and which she has (mostly) lost in the quarter-century since.

And as for the words? Well, in the clip Wellesley posted, Clinton (er, Rodham) sounds more like a Bernie Sanders supporter would sound now.