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.
Portrait of Helen Keller as a young girl, with a white dog on her lap (August 1887). Helen Adams Keller was born a healthy child in Tuscumbia, Alabama, on June 27, 1880. Her parents were Kate Adams Keller and Colonel Arthur Keller.