One part of it was that times were better when emperors were selected based on ability instead of by heredity. https://medium.com/@samo.burja/how-roman-emperor

One part of it was that times were better when emperors were selected based on ability instead of by heredity. https://medium.com/@samo.burja/how-roman-emperors-handled-the-succession-problem-730f15b812f https://medium.com/@samo.burja/how-roman-emperors-handled-th... https://www.britannica.com/topic/Five-Good-Emperors https://www.britannica.com/topic/Five-Good-Emperors