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.
With remarkable determination, Helen graduated Cum Laude in 1904, becoming the first deaf-blind person to graduate from college. At that time, she announced that her life would be dedicated to the amelioration of blindness. After graduation, Helen Keller began her lifeâs work of helping blind and deaf-blind people. She appeared before state and national legislatures and international forums. She regarded herself as a âworld citizenâ, visiting 39 countries on five continents between 1939 and 1957.