August 28 will mark 50 years since the Rev. Dr. Martin Luther King Jr’s March on Washington, where he delivered his most famous speech. To mark the occasion, the Pew Center released a report on racial disparities (real and perceived) in the U.S.

The analysis finds that the economic gulf between blacks and whites that was present half a century ago largely remains. When it comes to household income and household wealth, the gaps between blacks and whites have widened. On measures such as high school completion and life expectancy, they have narrowed. On other measures, including poverty and homeownership rates, the gaps are roughly the same as they were 40 years ago.

I strongly recommend clicking through to read the full report. What a treasure trove. Chapter 1 covers perceptions of progress toward racial equality. Chapter 2 covers opinions about “short-term progress for black Americans.” Chapter 3 “looks at a variety of economic, educational, health, political and social indicators to assess change in the relative well-being of black and white Americans in recent decades.” I wasn’t surprised to learn that white respondents are much more likely than African-Americans to say that “the situation of black people in this country is better now than it was five years ago.” It’s striking that only a minority of white respondents perceive that “blacks in their community are treated less fairly than whites by the criminal justice system, in the workplace and when voting in elections.”

This slideshow highlights the key findings from the Pew Center’s report, and this interactive feature tracks up to 50 years of data on “racial and ethnic gaps among whites, blacks, Asians and Hispanics.”