What eugenics is and the history of eugenics?

Eugenics is a social and scientific movement aimed at improving the genetic quality of a human population, often through selective breeding and sterilization. Originating in the late 19th century, it gained popularity in the early 20th century, particularly in the United States and Europe, where it was associated with ideas of racial superiority and population control. The movement led to unethical practices, including forced sterilizations and discriminatory laws, and reached its most horrific expression during the Holocaust. By the mid-20th century, eugenics fell out of favor due to its association with human rights abuses and flawed scientific principles.