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.
Synopsis. Helen Adams Keller was born on June 27, 1880 in Tuscumbia, Alabama. In 1882, she fell ill and was struck blind, deaf and mute. Beginning in 1887, Keller's teacher, Anne Sullivan, helped her make tremendous progress with her ability to communicate, and Keller went on to college, graduating in 1904. In 1920, Keller helped found the ACLU. During her lifetime, she received many honors in recognition of her accomplishments.