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.
On June 1, 1968, Helen Keller died in her home at the age of 87 after suffering a heart attack. Her funeral service, held at the National Cathedral in Washington, D.C., was attended by twelve hundred mourners.