Helen Keller was a US author and public speaker who became blind and deaf at the age of 19 months. Anne Sullivan became her teacher in 1887 and taught her to read, write, use sign language and speak. Keller received degree from Radcliffe College in 1904 and spent the rest of her life encouraging others with difficulties like hers to overcome them. Her books include The story of My Life (1902) and Out of the Dark(1913). Her life was the subject of the play The Miracle Worker Helen Keller was an author in   _  .
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