Since it is a 12 digit number, there are chances of mistakes in day to day life. However, ISO has introduced the check digit, using which one can identify the correctness of the ISIN number. The check digit helps in identifying the errors in previous 11 bits.
Helen Adams Keller (June 27, 1880 â June 1, 1968) was an American author, political activist, and lecturer.
WESTPORT, Conn., June 1--Helen Keller, who overcame blindness and deafness to become a symbol of the indomitable human spirit, died this afternoon in her home here. She was 87 years old. She drifted off in her sleep, said Mrs. Winifred Corbally, Miss Keller's companion for the last 11 years, who was at her bedside.