Steven Johnson
Steven Johnson

Steven Johnson is the author of five books, including Everything Bad Is Good For You andThe Ghost Map, and co-founder of Outside.in.

  Life
The History of American Slavery
Sept. 3 2015 11:17 AM Why They Fled Underground Railroad operator Sydney Howard Gay’s meticulous guestbook reveals how and why enslaved men and women risked everything to escape north.
  Slate Plus
The History of American Slavery
Sept. 3 2015 10:59 AM To Do No Harm? History of American Slavery, Episode 7: What modern medicine gained from slavery, and how slaveholders sought to legitimize their ideology through science.