Breuer observed that every time he traced a symptom to its origin, it was usually a traumatic experience that caused physical symptoms. these are known as ideas.

I believe the answer is: Pathogenic ideas

Pathogenic ideas refers to the ideas that are forced out of our mind as a result of self-defense mechanism to prevent us from having mental breakdown.
This process often happened after people experience a very traumatic experience such as being raped, murder of the loved ones, war, etc.

It depends on what you believe, if you’re christian that you would have been told that the first humans were created by god and that we’re all decedent's from adam and eve but scientist say otherwise