Blank-Slate Theory

Blank-Slate Theory of the earliest theories was that a child is a blank slate and a child could be raised as either gender. This theory was put to the test in the case of David Reimer. In short, David Reimer's assigned sex was male, but he was surgically transitioned as a baby and raised as female following a botched circumcision. He never felt like a female, and transitioned back to being a boy after being told at age 14 about the surgical procedures performed while he was an infant. David committed suicide at age 38.