Helen Keller (June 27, 1880–June 1, 1968), the famous deafblind American author, political activist and lecturer in 19th century. With her astonishing persistence and under the help of her teacher Anne Sullivan, Helen mastered five languages: English, French, German, etc. She completed a series of articles, was dedicated to people with disabilities, and established charities. She was named as one of ten hero idols by Time and awarded with a Presidential Freedom Medal. Her writings include “The story of my life", "My teacher", "Three days to see".