Henry Johnson served in the 369th Infantry Regiment, a unit of the U.S. Army that was composed primarily of African American soldiers and later became known as the "Harlem Hellfighters."

In the 19th century, train collisions happened at alarming rates. The problem was that rail workers couldn't properly communicate with each other. That is, until Granville T. Woods, better known as Black Edison, changed everything.

Explore the enduring legacy of Black resistance, intellect and activism through the stories of five key figures.

The first half of the 20th century saw massive surges in polio cases, resulting in extended hospital stays for many, including Eleanor Abbot, a retired schoolteacher who invented Candyland to entertain the children she met in the polio ward.