Constantine reigned during the 4th century CE and is known for attempting to Christianize the Roman Empire. He made the persecution of Christians illegal by signing the Edict of Milan in 313 and helped spread the religion by bankrolling church-building projects, commissioning new copies of the Bible, and summoning councils of theologians to hammer out the religion's doctrinal kinks. Constantine was also responsible for a series of important secular reforms that ranged from reorganizing the Roman Empire's currency system to restructuring Rome's armed forces. His crowning achievement was his dedication of Constantinople as his new imperial capital in 330.
The Prohibition Era. This was when the U.S. tried (and failed) to make the entire country dry (not sell alcoholic beverages).
One of the most influential ideas to come out of greco-roman civilization was that governments should serve people.
Ill first answer with a riddle... He has a famous trail named after him where american troops were sent... Theres songs written about this trail. His name is Ho Chi Minh
The trail of course :
The Ho Chi Minh Trail