AD (Anno Domini), BC (Before Christ), BCE and CE

The Quick Answer
To cater to religious diversity, the abbreviations BCE (Before Common Era) and CE (Common Era) can be used to replace BC and AD.

Of note, AD is written before the year, while BC, BCE, and CE are written after the year. For example:
  • 2017 CE or AD 2017
  • 487 BCE or 487 BC

Writing Years with AD, BC, BCE, and CE

The abbreviation AD (Anno Domini) denotes of the Christian Era and should be written before the year. The abbreviation BC (Before Christ) should be written after the year.

Examples:
  • AD 2001
  • 487 BC
  • Caesar reigned from 63 BC to AD 14.

should be AD 2000
(comic title)



correct
(brick building)



should be AD 71 and AD 109
(magazine article)

Using BCE and CE

To cater to religious diversity, the abbreviations BCE (Before Common Era) and CE (Common Era) can be used to replace BC and AD. BCE and CE are written after the year. For example:
  • Caesar reigned from 63 BCE to 14 CE.

See Also

Full stops (periods) in contractions Forming the plurals of abbreviations Using full stops (periods) in abbreviations