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.
Quiz
The earliest known examples of the word date back to 1780; its etymology is unknown, but it may have originated in student slang. It initially meant a "odd, eccentric person" or a "joke, hoax". Later (perhaps by association with words such as "inquisitive") it came to mean "to observe, study intently", and thence (from about mid-19th century) "test, exam."