Race theory stands alone as biggest mistake
Now, there are some big contenders for this dubious honour. Massive blunders like the invention of nuclear weapons, fossil fuels, CFCs (chlorofluorocarbons), leaded petrol and DDT. And tenuous theories and dubious discoveries like luminiferous aether, the expanding earth, vitalism, blank slate theory, phrenology, and Piltown Man, to name just a few.
But race theory stands out among all of them because it has wreaked untold misery and been used to justify barbaric acts of colonialism, slavery and even genocide. Even today it's still used to explain social inequality, and continues to inspire the rise of the far right across the globe.
Take for example the controversy that surrounded Nicholas Wade's 2014 book, A Troublesome Inheritance, if you doubt for a moment the resonance race still has for some people.
The human races were invented by anthropologists like Johann Friedrich Blumenbach back in the 18th century in an attempt to categorise new groups of people being encountered and exploited as part of an ever expanding European colonialism.
From the very beginning, the arbitrary and subjective nature of race categories was widely acknowledged. Most of the time races were justified on the grounds of cultural or language differences between groups of people rather than biological ones.
Their existence was taken as a given right up until the 20th century when anthropologists were busy writing about races as a biological explanation for differences in psychology, including intelligence, and educational and socioeconomic outcomes between groups of people.
Are races still valid?
Yet, there always was a great deal of unease about race and a widely held belief that racial categories were in practice extraordinarily difficult to apply.
One famous critic of racial theory was the American anthropologist Ashley Montagu who wrote in 1941:
"The omelette called 'race' has no existence outside the statistical frying pan in which it has been reduced by the heat of the anthropological imagination."
If race still resonates today publicly and politically, what do scientists think about it? Do anthropologists in particular believe that races are still valid?
A new survey of more than 3,000 anthropologists by Jennifer Wagner of the Geisinger Health System and her team has recently been published in the American Journal of Physical Anthropology and it offers some valuable insights into their views and beliefs.
The people surveyed were members of the American Anthropological Association, the largest professional body of anthropologists in the world.
They were asked to respond to 53 statements about race covering topics like whether races are real, if they are determined by biology, whether races should play a role in medicine, the role of race and ancestry in commercial genetic testing, and if the term race should continue to be used at all.
Most revealing was the response to the statement, "The human population may be subdivided into biological races",
with 86 per cent of respondents strongly disagreeing or disagreeing.
To the statement, "Racial categories are determined by biology", 88 per cent strongly disagreed or disagreed. And, "Most anthropologists believe that humans may be subdivided into biological races",
85 per cent of respondents strongly disagreed or disagreed.
We can take from this that there is a clear consensus among anthropologists that races aren't real, that they don't reflect biological reality, and that most anthropologists don't believe there is a place for race categories in science.