That is blatantly wrong and no it wasn’t. It was created to help French school children with their studies by helping teachers understand where they were lagging behind and needed more help in. As “General Intelligence” was thought to be changeable and just a metric of how much people are educated in base subjects like math, vocabulary, reading, base problem solving, and pattern recognition. Something that IQ is decently good at quantifying. IQ is not a measure of “How smart” a person is.

The eugenics movement, racists, and Nazis used IQ for race science. But that came 20-30 years after the first usages of IQ.

They spread the myth that IQ is unchangeable and genetic, when in reality it is a metric that is affected by material conditions and education.