Bullshit, backpropagation was discovered by Rosenblatt...
Feedback for the purpose of regulating the state of a machine in response to input dates to antiquity, if we're really getting absurd. The formal definition is also debatable, I think Maxwell has the strongest claim.
It was clearly phrased this way specifically because backprop is just the chain rule applied in a particular direction, and as such has been invented and reinvented over and over by every one under the sun. Hell, a lazy googling says gradient descent goes back to Cauchy.
Hah!
So, invention recapitulates evolution?