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.
House mark
The Norwegian word "bomerke" or "boemerke" probably came from Denmark. There is no Norwegian reference before the 17th century. Today "bomerke" is mainly written as "bumerke" in Norwegian. Both in Denmark and Sweden, the word bomerke (with multiple spellings) is used since the 14th century and in the 16th century. In the Icelandic codes of law from the Middle Ages, one finds the word "einkunn" used to denote owner marks used to tag animals. It is likely that this word has also been used in Norway.