Is A. D prehistory, post-history, or history?

Explanation:

Protohistory is a period between prehistory and history during which a culture or civilization has not yet developed writing, but other cultures have already noted its existence in their own writings.

Protohistory is a period between prehistory and history during which a culture or civilization has not yet developed writing, but other cultures have already noted its existence in their own writings.

the story goes that because of this belief, constantine was able to defeat his foes. constantine became an ardent1 christian. christianity and other religions were tolerated under constantine's rule. constantine also was responsible for the building of a great cathedral in rome.