In 1882, however, Keller contracted an illness—called "brain fever" by the family doctor—that produced a high body temperature. The true nature of the illness remains a mystery today, though some experts believe it might have been scarlet fever or meningitis. Within a few days after the fever broke, Keller's mother noticed that her daughter didn't show any reaction when the dinner bell was rung, or when a hand was waved in front of her face. Keller had lost both her sight and hearing. She was just 18 months old. As Keller grew into childhood, she developed a limited method of communication with her companion, Martha Washington, the young daughter of the family cook. The two had created a type of sign language, and by the time Keller was 7, they had invented more than 60 signs to communicate with each other. But Keller had become very wild and unruly during this time. She would kick and scream when angry, and giggle uncontrollably when happy. She tormented Martha and inflicted raging tantrums on her parents. Many family relatives felt she should be institutionalized.
