you did not upload an image but I’ll be happy to help when you do
The probability of aggression increases because of how the individual would deal with interactions in relation with problems or situations that is happening on his or her life. It is also because of the individual's beliefs that could cause an increase in aggression.
Http://study.com/academy/lesson/persian-empire-history-culture-timeline.html
If I'm not mistaking i think it was 40 yrs