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.
Best Answer: Helen Adams Keller born June 27th 1880 â died June 1st 1968. She was the first deafblind person to earn a Bachelor of Arts degree. She campaigned for women's suffrage, workers' rights, and socialism, as well as many other progressive causes. She wrote a total of 12 published books and several articles.