Why can the Trajan rule be considered a model of a golden age?

Troyan’s reign exalted Rome and gave peace and social confidence to its citizens. The adopted decrees of the emperor had a beneficial effect on the stabilization of the economy in the empire. The peasants were able to take loans from the state treasury. The increase in agricultural production freed from external purchases of grain crops. The military campaign undertaken by the Trojans saved the country from the threat of an attack by Parthia. Thanks to his knowledge of military affairs and authority in the army, he was able to expand his possessions to the Danube. He consolidated the conquest with the formation of a new Roman province – Dacia.