It seems as if nearly every ancient and medieval civilization used capital punishment for all sorts of crimes. Did nobody question the morals of it or were people just more barbaric?
It is easier to say the ancient was barbaric and makes our evolution level seem more evolved.
Here is a picture from ancient china, with three different punishment: http://www.hi.com.au/resource/History/fullImg.asp?imageid=10986&age=2&subtopicid=2508&kla=16
Here about the aztec: http://www.aztec-history.com/aztec-crime-and-punishment.html
Here is ancient Babylonian, when the "TL:DR" 30 offenses out of 300 crimes was death: http://www.livescience.com/39393-code-of-hammurabi.html