Quizlet is an online learning tool created by high school sophomore Andrew Sutherland in Albany, California. It was originally conceived in October 2005 and released to the public in January 2007. As of January 2014, Quizlet has over 35 million user-generated flashcard sets and more than 11 million registered users.
Quizlet began as an idea conceptualized by 16-year-old Andrew Sutherland when he was assigned by his French teacher to memorize 111 animal names. After realizing the daunting task of mechanical memorization, Sutherland sat down to write code for a program to aid him in memorization. These first lines of code were scrapped and then rewritten meticulously and carefully over the course of 420 days by Sutherland. In January 2007, Quizlet was released to the public.