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.
Helen Keller is born to Captain Arthur Henley Keller and Kate Adams Keller at Ivy Green in Tuscumbia, Alabama. February 1882. After being struck by illness, Helen loses both her sight and hearing. No definitive diagnosis of the disease is ever determined.