how long ago did Cajun music start?

Looking for information on acadian history in louisiana, such as what did the early cajuns eat, when they first got to louisiana.

Here are some good references:

http://www.lsue.edu/acadgate/music/history.htm

http://en.wikipedia.org/wiki/Louisiana_Creole_music

http://www.balfatoujours.com/cajuns.html

http://pages.cs.wisc.edu/~jmeaux/cajun.html