An illness at nineteen months old left Helen Keller both deaf and blind, cutting her off from language almost entirely before she'd truly begun to acquire it. By age six, she was a frustrated, often furious child, unable to communicate more than the crudest signals to a family that loved her but didn't know how to reach her.
Her parents hired a young, partially sighted teacher named Anne Sullivan, who moved in and began an intense, often exhausting process of spelling words into Helen's palm, letter by letter, for every single object Helen touched — with little sign, for weeks, that any of it was actually connecting to meaning.
Then, one now-famous morning at the water pump outside the house, Sullivan ran cool water over one of Helen's hands while spelling W-A-T-E-R into the other, over and over. Something clicked — for the first time, Helen understood that the motion in her hand was a name for the thing flowing over her skin. Keller later described it as the moment her entire world 'had meaning.'
From that single breakthrough, she went on to learn to read, write, and speak, eventually becoming the first deaf-blind person to earn a Bachelor of Arts degree, and spending the rest of her life as a writer and advocate for people with disabilities across the world.