This theory was discredited much later in the 20th century.

Therefore the Eugenics movement and its theories were never discredited.

On the other side, researchers say the cardioprotective theory has been discredited.

Wasn't "witch" an early English word for wise, or had that theory been discredited?

He explains how the theories presented in the article were discredited.

The theory has since been discredited, as the rate of juvenile crime has dropped by half.

This theory was predominant among psychiatrists through the 1970s, but has since been discredited.

The theory was discredited, but nonetheless sold more than 150,000 copies.

Some theories proposed in the 1800s and early 1900s have since been largely discredited by anthropologists.

Other scholars have since joined in and today the theory is largely discredited.