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To The Best Of Our Knowledge

Harriet Tubman will soon be gracing our twenty dollar bill. Most of us know only one image of her. It's an iconic image taken later in her life in which her hair's covered in a dark cloth and she has a stern expression. But there are other images of Harriet Tubman as well, including a wood cut of her carrying a musket.

Law professor Nicholas Johnson says the image of Harriet Tubman carrying a rifle doesn’t fit with how most Americans view abolitionists and civil rights leaders. After all, weren’t they supposed to be peaceful? But as Johnson tells Steve Paulson, there's a rich tradition of Black Americans owning guns for self-defense.

To The Best Of Our Knowledge

Mark Spragg grew up at Holm Lodge, the oldest dude ranch in Wyoming. He talks about growing up on horseback in the American mountain West

To The Best Of Our Knowledge

As Jim prepares to step out of the hosting chair, he welcomes Anne as the new TTBOOK host and reflects on his long career in radio.  We also hear listeners' letters to Jim.

To The Best Of Our Knowledge

Muffy Mead-Ferro recalls her one and only experience of scrap-booking. She is the author of “Confessions of a Slacker Mom.”

To The Best Of Our Knowledge

John Elder Robison, whose younger brother is the writer Augusten Burroughs, did not get his diagnosis of Asperger's until he was in his 40s.

To The Best Of Our Knowledge

How did non-life become life? University of Wisconsin geochemist Nita Sahai talks with Anne Strainchamps about how life might have begun on Earth.

To The Best Of Our Knowledge

Kumail Nanjiani is a Pakistani standup comedian living in Chicago and performing a one-man show called "Unpronounceable."

To The Best Of Our Knowledge

Rebecca Goldstein explains how Spinoza envisioned God and why his conception appealed to later scientists like Einstein.

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