To be honest, I couldn't tell you when, exactly, it started. I first ran across the idea shortly around the turn of the century. Somewhere around 2005 or so, I came across a concept on some white supremacist websites, where they were claiming that the word "racism" was coined by Leon Trotsky as a term to browbeat dissenters in the Communist party, and has now been adopted by the "radical left." The year that he was supposed to have done this ranges from 1927 to about 1934, depending on where you find the claim. In fact, I'll let some reprint of a reprint from the white supremacist website Stormfront explain it.
Almost sounds intellectual, doesn't it? Like he did his homework? Maybe knew what he was talking about, right?
What surprisingly remains almost totally undiscussed, even on the hard core traditionalist Right, is the word's origin. Did it come from a liberal sociologist? A 60's Marxist college professor? Perhaps a politician in the Democratic Party? No. It turns out that the word was invented by none other than one of the principal architects of the 74-year Soviet nightmare, the founder and first leader of the infamous Red Army, Leon Trotsky.
Take a look at this document if you would, dear reader.
Славянофильство, мессианизм отсталости, строило свою философию на том, что русский народ и его церковь насквозь демократичны, а официальная Россия -- это немецкая бюрократия, насажденная Петром. Маркс заметил по этому поводу: "Ведь точно так же и тевтонские ослы сваливают деспотизм Фридриха II и т. д. на французов, как будто отсталые рабы не нуждаются всегда в цивилизованных рабах, чтобы пройти нужную выучку". Это краткое замечание исчерпывает до дна не только старую философию славянофилов, но и новейшие откровения "расистов".
This is Leon Trotsky's 1930 work, "The History of the Russian Revolution", from which shown above is a passage. The last word in that passage is "расистов", whose Latin transliteration is "racistov", i.e., "racists". This work here is the first time in history one will ever find that word.
Yeah, it sounds that way. It's total crap, of course, but it sounds really smart.
See, this is a basic ad hominem fallacy, where you "shoot the messenger" instead of taking on the argument itself. "This is a concept created by a monster from the old Soviet Union! Nobody ever used it before him! It's evil and tainted and can never be used!"
Except for one little problem. A quick look at the etymology of the word shatters the very premise of the argument.
See, right around the turn of the century, the English-speaking world was using terms like racialism, or sometimes race hatred or race prejudice (one of my personal favorites, dating back to the 1800s, was negrophobia). Around that same time, the French were using raciste or racisme (particularly, a few decades later, to refer to the Germans and their philosophies).
For example, the terms pensée raciste (racist thought) and individualité raciste (racial individuality) appear in La Terro d’oc: revisto felibrenco e federalisto from 1906.
The Oxford English Dictionary cites Richard Henry Pratt in 1902 for the first use of the word "racist" in English.
There are probaly earlier versions in both languages, but who needs them? We've already destroyed the basic premise of the argument.
Once again, the Right (and in this case, the Extremely Far Right) is trying to create a little revisionist history to give cover to their sins.