Question mark
In the early 13th century, when the growth of communities of scholars (universities) in Paris and other major cities led to an expansion and streamlining of the book-production trade, punctuation was rationalized by assigning Alcuin's stroke-over-dot specifically to interrogatives; by this time the stroke was more sharply curved and can easily be recognized as the modern question mark.
Question mark
Bracketed question marks can be used for rhetorical questions, for example "Oh, really(?)", in informal contexts such as closed captioning. For an ironic or sarcastic statement, a bracketed exclamation mark may be used: "Oh, really(!)".