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.
She co-founded Helen Keller International in 1915 and worked for the American Foundation for the Blind for more than 40 years. An inspiration to millions of people around the world, Helen Keller received numerous awards and honors including the Presidential Medal of Freedom and the Legion of Honour. Here are her 10 major achievements.