From where did language originate?

The sons of Noah would have had to be able to communicate with each other so language either body language or oral was in existence at that time. Adam & Eve must have had some form of communication. Language does not have to be oral in kind to be a language. Auslan (language for the deaf) has officially been declared a language in it's own right "Any language, whether spoken or signed, grows and develops spontaneously in response to the communication needs of its users, particularly when it is used (1) by an entire community and (2) in communication between parents and children, and especially when that language is the child's first, or only, one." Language has evolved or originated along with human evolution. So one could say language evolved with the first sounds emitted by any species, human or animal as they also have the means to communicate.