This began simply via seizing Christian’s property, destroying their homes, burning all Christian texts, etc.When this sort of thing was ineffective, they progressed to arresting and torturing Christians, starting with the leaders.When that didn’t work, Christians began to be killed in various brutal ways including occasionally being torn apart by animals for the amusement of the masses (Damnatio ad bestias).This method of convincing people to worship the Roman gods ended up being an amazing failure and the persecution appears to have only continued after AD 305 in the Eastern half of the empire under Galerius and Maximinus. Other methods were also used which led to the confusion.
The Greeks were among the first to try to get everyone running on the same year. D., to coincide with the rise of Roman emperor Diocletian into power. C.—that is, “before Christ”—wasn't introduced until 1627, by a French astronomer. D., so decided to figure that in by counting backwards. The specifics of which one are not particularly important.
Previous to this, he had purportedly only advocated banning Christians from such things as the military and ruling body in hopes that would appease the gods.
Afterward, he switched to an escalating policy of persecution to try to get Christians to worship the Roman gods.
The meaning of AD is Anno Domini or Year of our Lord referring to the year of Christ’s birth. Today, based on historical evidence relating to Herod and astronomical evidence relating to eclipses and star novas, most historians believe Christ was born a few years earlier. (That’s the reason purists insists the 21st century began January 1, 2001.
He decided to start his 532-year cycle from 753 years after the Founding of Rome.