Who created New Norwegian or Nynorsk?

Nynorsk (New Norwegian) was created by the Norwegian language scholar and dialectologist Ivar Aasen.1

Driven by the ideology of national Romanticism and a desire to establish a national standard distinct from the Danish-influenced written language, Aasen conducted extensive research into contemporary Norwegian dialects. He concluded that these dialects were the true descendants of Old Norwegian.12

Beginning in the mid-19th century, Aasen constructed the Nynorsk norm—originally called Landsmål—by synthesizing features primarily from the rural dialects of western and central Norway. He formalized this language through his research, including his grammar and dictionary of the Norwegian dialects, and demonstrated its literary potential by composing his own poems and plays in the language. Nynorsk was officially recognized as a second national language in 1885 and remains one of the two official written standards of Norway today.12