Willard Fiske,
The American Cyclopædia — Norway…
“ NORWAY, Language and Literature of. The Norræna mâl, or northern language, now represented, with slight inflectional and orthographical variations, by the Icelandic, was the common language of Denmark, Norway, and Sweden from an unknown period to the 11th century. (See Iceland, Language and Literature of.) Norway retained the old tongue longer than either of the other kingdoms. The few mediæval Norwegian documents do not exhibit any important grammatical changes until about the time of the annexation of Norway to Denmark toward the close of the 14th century. ”
