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 considered by many to be a leading figure of the twentieth century. When she was an infant, illness robbed her of her vision and hearing. Thanks to the pioneering strategies developed by Perkinsâ first director, Samuel Gridley Howe, and the tenacity of Perkins alumna, Anne Sullivan, she became the worldâs best known individual with deafblindness.