<P> In the 1990s, the "Standards & Accountability Movement" began in the U.S. as states began writing standards (a) outlining what students were expected to know and to be able to do at each grade level, and (b) implementing assessments designed to measure whether students were meeting the standards . As part of this education reform movement, the nation's governors and corporate leaders founded Achieve, Inc. in 1996 as a bipartisan organization to raise academic standards and graduation requirements, improve assessments, and strengthen accountability in all 50 states . The initial motivation for the development of the Common Core State Standards was part of the American Diploma Project (ADP). </P> <P> A 2004 report, titled Ready or Not: Creating a High School Diploma That Counts, found that employers and colleges are demanding more of high school graduates than in the past . According to Achieve, Inc., "current high - school exit expectations fall well short of employer and college demands ." The report explained that the major problem currently facing the American school system is that high school graduates were not provided with the skills and knowledge they needed to succeed in college and careers . Furthermore, "While students and their parents may still believe that the diploma reflects adequate preparation for the intellectual demands of adult life, in reality it falls far short of this common - sense goal ." The report also stated that the high school diploma itself lost its value because graduates could not compete successfully beyond high school, and that the solution to this problem is a common set of rigorous standards . </P> <P> In 2009, the NGA convened a group of people to work on developing the standards . This team included David Coleman, William McCallum of the University of Arizona, Phil Daro, and Student Achievement Partners founders Jason Zimba and Susan Pimentel to write standards in the areas of English and language arts . Announced on June 1, 2009, the initiative's stated purpose is to "provide a consistent, clear understanding of what students are expected to learn, so teachers and parents know what they need to do to help them ." Additionally, "The standards are designed to be robust and relevant to the real world, reflecting the knowledge and skills that our young people need for success in college and careers," which should place American students in a position in which they can compete in a global economy . </P> <P> The standards are copyrighted by NGA Center for Best Practices (NGA Center) and the Council of Chief State School Officers (CCSSO), which controls use of and licenses the standards . The NGA Center and CCSSO do this by offering a public license which is used by State Departments of Education . The license states that use of the standards must be "in support" of the Common Core State Standards Initiative . It also requires attribution and a copyright notice, except when a state or territory has adopted the standards "in whole ." </P>

When were the common core state standards developed