DEI has a long history. Nora Carol Photography via Getty Images

by Rodney Coates , Miami University

Few issues in the U.S. today are as controversial as diversity, equity and inclusion – commonly referred to as DEI.

Although the term didn’t come into common usage until the 21st century, DEI is best understood as the latest stage in a long American project. Its egalitarian principles are seen in America’s founding documents , and its roots lie in landmark 20th-century efforts such as the 1964 Civil Rights Act and affirmative action policies , as well as movements for racial justice, gender equity , disability rights , veterans and immigrants.

These movements sought to expand who gets to participate in economic, educational and civic life. DEI programs, in many ways, are their legacy.

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