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
Initially, the French guillemet characters were not angle shaped but also used the comma (6/9) shape. They were different from English quotes because they were standing (like today's guillemets) "on" the baseline (like lowercase letters), and not above it (like apostrophes and English quotation marks) or hanging down from it (like commas). At the beginning of the nineteenth century, this shape evolved to look like  small parentheses . The angle shape appeared later to increase the distinction and avoid confusions with apostrophes, commas and parentheses in handwritten manuscripts submitted to publishers. Unicode currently does not provide alternate codes for these 6/9 guillemets on the baseline, which are still considered as form variants implemented in older French typography (such as the Didot font design). Also there was not necessarily any distinction of shape between the opening and closing guillemets, with both types pointing to the right (like today's French closing guillemets).