"Very little engineering was done before agrarian societies, and I'm fairly certain that most ancient wonders required no small amount of engineering chops." G

"Very little engineering was done before agrarian societies, and I'm fairly certain that most ancient wonders required no small amount of engineering chops." Göbekli Tepe (http://en.wikipedia.org/wiki/Göbekli_Tepe http://en.wikipedia.org/wiki/Göbekli_Tepe) disproves that assumption, and calls to question many others about pre-agrarian society.