Question mark
The rhetorical question mark or percontation point was invented by Henry Denham in the 1580s and was used at the end of a rhetorical question; however, its use died out in the 17th century. It was later revived in modern-day society by Matt DiRoberto. It was the reverse of an ordinary question mark, so that instead of the main opening pointing back into the sentence, it opened away from it. This character can be represented using the reversed question mark (⸮) found in Unicode as U+2E2E. The percontation point is analogous to the irony mark, but those are even more rarely seen.
The Race Question
The Race Question is the first of four UNESCO statements about issues of race. It was issued on 18 July 1950 following World War II and Nazi racism to clarify what was scientifically known about race, and as a moral condemnation of racism. It was criticized on several grounds and revised versions were publicized in 1951, 1967, and 1978.