It seems that there is a "queer agender" feminist physicist who wants to name NASA's new telescope after Harriet Tubman. That is just silly, but I do agree that Tuman is worth remembering. She was a gun-toting, black activist who delivered actual people from actual slavery at great physical risk to herself. She was also a Republican.
We really should put her on the $20 bill. I've said this before, and I really like this design.
I truly like the symbolism in that design. A determined, Tubman, leading the way out of bondage, with a Colt's Dragoon to punctuate her dtermination.