2. Helen Keller
When she was nearly two years old, Helen Keller contracted an illness that left her with complete blindness and hearing loss. At age seven, she began her education with Anne Sullivan, which greatly helped her to broaden her understanding of the world (previously, she did not know that every object had its own name). Keller learned to speak and later became known for her speeches and lectures. She also became the first deaf-blind person to earn a Bachelor of Arts degree.
Fun fact: Helen Keller starred as herself in a silent film called Deliverance (no relation to the creepy 1972 film).