Williams founded the colony of Rhode Island based upon principles of complete religious toleration, separation of church and state, and political democracy (values that the U.S. would later be founded upon). It became a refuge for people persecuted for their religious beliefs.
Safavid shahs claimed to be family descendants from the prophet Muhammad. They were more available to their subjects, seized landed estates and appointed officials based on merit. They did not follow Roman laws.
The united states dropped the worlds first attomic bomb over the city of Hiroshima in Japan and this explosian wiped 90% of the population a dlater killed many around 80,000+ were dead.