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.
Mark (currency)
The mark was a currency or unit of account in many nations. It is named for the mark unit of weight. The word "mark" comes from a merging of three Teutonic/Germanic words, Latinised in 9th-century post-classical Latin as ', ', ' or '. It was a measure of weight mainly for gold and silver, commonly used throughout Western Europe and often equivalent to eight ounces. Considerable variations, however, occurred throughout the Middle Ages.