Answer Wiki. Wikipedia has a fairly good summary - Modern art - defining it broadly as art from much of the second half of the 19th century through nearly 3/4 of the 20th. There's also a piece on Modernism in the arts from the mid-19th century through the present.
Another major difference that can be seen between Cajun and Creole is in their foods. The food of Creole is Afro-European with some French flair. On the other hand, Cajun foods have a French influence. One can also see that the two sects of people practise and love different music.
Although it has been centuries since they migrated to Louisiana, modern Cajun culture has managed to preserve a great deal of French-Canadian tradition and folk culture. The Cajun people are well-known for their vibrant culture, as well as their unique language. Cajun music is notable for its mixture of French-Canadian elements (such as accordions) and African American elements, and is celebrated as one of the many distinct cultural aspects of the Cajun people.