According freud, obsessive-compulsive disorders have their origin in the stage of development

According Freud, obsessive-compulsive disorders have their origin in the anall stage of development.
This stage is the second stage in Sigmund Freud's theory of psychosexual development. It lasts from age of 18 months to three years. 
The name comes from the anuss as the primary erogenous zone.

Ongoing civil wars western roman empire finally collapsed476 c.e. romulus, the last of theroman  emperors in  the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the  roman empire  had brought towestern  europe for 1000 years was no more.