During the 1721 smallpox outbreak in Boston, a slave named Onesimus taught his master an early version of inoculation — and saved hundreds of people.

A persona created by vaudevillian Lincoln Perry in the 1920s, Stepin Fetchit made Perry rich — but also angered many Black Americans due to his embracing of racial stereotypes.

From educators and artists to debutantes and philanthropists, these "Black Victorias" made a name for themselves in both England and the United States.

From marching with Martin Luther King Jr. in Selma to socking a racist cop for trying to keep her from the polls, Annie Lee Cooper fought for the rights of Black Americans with ferocity.

Known as the “Incubator Doctor,” Martin Couney was a controversial figure in the early 20th century. But today, he’s recognized as a hero who saved thousands of vulnerable infants.

In 2017, historians thought that they'd hit the jackpot with this collection of Nazi artifacts. Two years later, they were revealed to be fakes.