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.
Quotation mark
In France, by the end of the nineteenth century, they were modified to an angular shape and were "spaced out" (« … »). Some authors claim that the reason for this was a practical one, in order to get a character that was clearly distinguishable from the apostrophes, the commas and the parentheses. Also, in other scripts, the angular quotation marks are distinguishable from other punctuation characters—the Greek breathing marks, the Armenian emphasis and apostrophe, the Arabic comma, decimal separator, thousands separator, etc. Other authors claim that the reason for this was an aesthetic one. The elevated quotation marks created an extra white space before and after the word that was considered aesthetically unpleasing, while the in-line quotation marks helped to maintain the typographical color, since the quotation marks had the same height and were aligned with the lower case letters. Nevertheless, while other languages do not insert a space between the quotation marks and the word(s), the French usage does insert them, even if it is a narrow space.