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
In computing, the question mark character is represented by ASCII code 63 (0x3F hexadecimal), and is located at Unicode code-point . The full-width (double-byte) equivalent (？), is located at code-point .