Calendar Dates: AD or CE ?
Hyperhistory.net teaches world history from a Biblical perspective that places Jesus Christ in the center. Even though Jesus was likely born around 4-6 BC, we will still use the traditional Gregorian BC/AD system. Another system developed by Christians that we could have used was AM, or anno martyri, year of the martyrs, dating from the beginning of the persecutions under Diocletian but that would put us currently in the 1720s AM and suggest martyrs were more important than the birth of Christ (Anno Domini). Still another early Christian calendar was based on years since the creation of the world called "anno mundi". (bibleworldhistory.com gives an example of AM dates.)
Cultures throughout time have tracked time based on the most significant event of their culture. There are Several Calendars. For example, the founding of Rome in 753 BC gave rise to their AUC system. Islam bases their calendar on when Muhammad fled to Medina, accordingly Muslims are currently in the 1380s. The Hebrew calendar, based on the Law of Moses, is currently in the 5760s. To a novice, the Chinese calendar seems to be based on a box of animal crackers, e.g., Month of the Water Ox of the Year of the Water Ram.
In a politically correct attempt not to offend Jews, Muslims, and all other traditions which don't acknowledge a resurrected Jesus, the College Board has adopted the acronyms of BCE/CE. "Before the Common Era" and the "Common Era" still divides history by the birth of Christ, it just doesn't use the words.
Students using the BC/AD system on AP College Board exams will not be penalized.
Go for it! Here are some dates to practice.