用英文写一篇介绍海伦凯勒的文。

Helen Keller was born in 1880 in America.Not until she was 19 months old did she lost her sense of sight and hearing before she could learn how to speak.Her teacher Mrs.Anne Sullivan came to her side when she was seven and started toeducate her.
With the help of her teacher,she finished college,learned how to type and had a good command of French and German.She devote herself to education and International servicesfor the blind and the dumb.Her autobiography The Story Of My Life has encouraged people all over the world by now.

Helen Keller was born in 1880 in America.Not until she was 19 months old did she lost her sense of sight and hearing before she could learn how to speak.Her teacher Mrs.Anne Sullivan came to her side when she was seven and started toeducate her.

Helen Keller was born in 1880 in America.Not until she was 19 months old did she lost her sense of sight and hearing before she could learn how to speak.Her teacher Mrs.Anne Sullivan came to her side when she was seven and started toeducate her.
With the help of her teacher,she finished college,learned how to type