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.
Go to our Facebook page. Helen Keller worked for the American Foundation for the Blind for more than 40 years. She was born in Tuscumbia, Alabama, on June 27, 1880, and became deaf and blind at 19 months.