Society and PTSD????????

I have a serious problem hearing the word PTSD. Im a lifetime student of military history, and in every text I read, every document I examine I find no proof that PTSD existed before world war 2. Ive searches and searched and have found no proof that soldiers from the holy roman empire all the way up to world war 1 being troubled to the point of insanity because of the fighting. I personally think society is to blame for PTSD, everyone is pampered to the point of extreme softness. If someone was going to be a soldier for his country pre-ww1 they were raised as a soldier and thats what they were for life. I think the way we live now causes more health problems than if society was the way it was in rome. Having said that I love our troops especially the marines they are all brave men and women who fight for our country and there could be no higher calling or honor. Im simply asking if you think that the way society has developed has caused this disorder.