Who was the first psychologist in history?

The Greek philosopher Aristotle can be regarded as being the world's first psychologist because he wrote a book called 'De Anima', about the soul, and the soul is part of the subject matter of the original meaning of the Word 'psychology'. But conventionally Wilhelm Wundt, a German academic who was originally a physiologist, is regarded as the world's first psychologist because he created a psychological laboratory to which the subsequent development of psychology as a science can be traced back to the psychologists who received instruction there.