With last October’s confirmation of conservative Supreme Court Justice Brett Kavanaugh, Roe v. Wade came under greater threat than any time since it became law in 1973. But the movement to erode the protections Roe provides has made steady progress at the state level for years, including in the form of fetal personhood laws.

A special series by the New York Times editorial board explores what these laws are, how they’ve been used to successfully chip away at Roe v. Wade and why women with wanted pregnancies end up prosecuted under them.

The series will appear in print on Sunday, January 20th.