He didn't do much, instead relying on private industries and charities to provide relief
The Pax Romana ended in 180 CE after over one hundred fifty years in existence. The end of this era ushered in a period of great instability, with civil wars dividing the empire, political conspiracies that resulted in countless assassinations of senators, provincial and slave rebellions to shake the order
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The Pax Romana was an era of Roman history marked by apparent peace and prosperity during the transition from the Republican period to the imperial period, which brought stability to the Roman Empire and secured Rome's authority over its provinces. The expression pax romana originates from the official language of the Roman Empire - Latin - and means "Roman peace". The policy of Pax Romana was applied throughout the empire.
To rule his empire successfully, Hammurabi instructed his governors to rule distant cities. The governors were instructed on the administration of the new provinces, taxation of the towns, religious observations, deployment of soldiers to the military, public works like canal systems, and any adjustments made to the official calendar.
President George Washington wanted to remain neutral and not pick a side when France and Great Britain went to war. He signed the Proclamation of Neutrality, which threatened legal litigation if any American provided assistance to either country.