Would They Die for a Lie?

[Jehanne]

And, of course, there is a Wikipedia article on this:

Persecution of Christians in the Roman Empire occurred intermittently over a period of over two centuries between the Great Fire of Rome in 64 AD under Nero Caesar and the Edict of Milan in 313 AD, in which the Roman Emperors Constantine the Great and Licinius legalised the Christian religion.
The persecution of Christians in the Roman Empire was carried out by the state and also by local authorities on a sporadic, ad hoc basis, often at the whims of local communities. Starting in 250 AD, empire-wide persecution took place as an indirect consequence of an edict by the emperor Decius. This edict was in force for eighteen months, during which time some Christians were killed while others apostatised to escape execution.
These persecutions heavily influenced the development of Christianity, shaping Christian theology and the structure of the Church. The effects of the persecutions included the writing of explanations and defenses of the Christian religion.

Wikipedia:  Persecution of Christians in the Roman Empire