In the current article we will have a look at the evolution of audiological tests. Based on the Olsen's theory, having knowledge about the history of audiological evaluation is not a platitudinous issue, Rather an audiologist should have a comprehensive knowledge about it and be involved in its progress. In this way he can attain enough expertise and science to make use of the technology.The oldest history regarding to this issue goes back to the 16th century, although It should be considered that other related investigations about sound, hearing and related fields has heretofore been performed and the relevant investigators should not be ignored.