Resources to understand America’s long history of injustice and inequality. Illustration by The Washington Post; Photos by Library of Congress, AP, Washington Post.

The report, “How Privatization Increases Inequality,” is full of such examples. There’s the transit system of Nassau County, New York, privatized in 2011 in an effort to cut costs. Almost immediately ...

Campaigners behind the Everyday Sexism Project, which aims to raise awareness of day-to-day instances of gender inequality, have asked their followers to mark their third birthday by sharing their ...