About 120 years after it was taken, researchers have uncovered a photograph of a 8-year-old Helen Keller with her teacher Anne Sullivan. Keller is photographed with “one of her beloved dolls,” which happens to be “the first word Sullivan spelled for Keller after the met in 1887.” [mental_floss]

What’s equally fascinating to finding these amazing documents of history is the resulting surge of research on the history topic itself.