In 1998, the Father of Strengths Psychology, Donald O. Clifton, Ph.D. (1924-2003), along with Tom Rath and a team of scientists at The Gallup Organization, created the online StrengthsFinder assessment. In 2001, they included the first edition of StrengthsFinder with the bestseller Now, Discover Your Strengths. In 2004, the assessment's name was formally changed to "Clifton StrengthsFinder" in honor of its chief designer.
In 2007, building on the initial assessment and language from StrengthsFinder 1.0, Rath and Gallup scientists released a new edition of the assessment, program, and website, dubbed "StrengthsFinder 2.0." Rooted in more than 40 years of research, this assessment has helped millions discover and develop their natural talents. (text cited from the inside flap)