For starters, here’s a 2:47 minute mini-biography of her:

She was born in Maryland in 1820 and escaped from slavery in 1849 with two of her brothers. For reasons I can’t imagine, her brothers returned to the plantation from which they’d run. She accompanied them back there and then

made use of the network known as the Underground Railroad to travel nearly 90 miles to Philadelphia. She crossed into the free state of Pennsylvania with a feeling of relief and awe, and recalled later: “When I found I had crossed that line, I looked at my hands to see if I was the same person. There was such a glory over everything; the sun came like gold through the trees, and over the fields, and I felt like I was in Heaven.”

[snip]

Over time, she was able to guide her parents, several siblings and about 60 others to freedom.

[snip]

Harriet Tubman remained active during the Civil War. Working for the Union Army as a cook and nurse, Tubman quickly became an armed scout and spy. The first woman to lead an armed expedition in the war, she guided the Combahee River Raid, which liberated more than 700 slaves in South Carolina.

She died in 1913 of pneumonia, on land she owned in Auburn, NY. She was buried in the town with full military honors in recognition of her wartime service.