Martin Luther King, Jr.'s dream of a society where racial prejudice does not exist has not been fully realized as of 2015. However, significant progress has been made towards achieving it, according to The Guardian.
King laid out his dream in a speech he gave during the March on Washington, one of the biggest and most influential protests of the Civil Rights Movement. He spoke of a world where there was no racism and people were judged by their characters rather than their appearance. He also wanted a world where everyone had equal opportunity.
In legal terms, King's dream has largely been accomplished in the United States. It is illegal to discriminate against someone based on his skin color, and African-Americans can seek education and employment everywhere. African-Americans run major businesses and can hold political offices, including the presidency. This was unthinkable when King was alive.
However, African-Americans are still quietly discriminated against by some people. Some cities are still essentially segregated, even though segregation is not legislated. The U.S. Department of Justice has investigated some police departments and found systematic discrimination against African-Americans in the criminal justice system. Multiple studies have shown that African-American job seekers are less likely to be interviewed than white candidates, even if their resumes are identical. Some people still believe in negative stereotypes about African-Americans, even if they are less likely to speak them aloud because it is not widely acceptable.