bce
Word family
Synonym discussion
Sense: adverb/1
BC (Before Christ) and BCE (Before Common Era) refer to the same period — years before year 1 of the Western calendar. The difference is purely stylistic: BC is the traditional label carrying explicit Christian reference, while BCE is a secular alternative that gained popularity in academic writing from the late 20th century onward. CE (Common Era) and AD (Anno Domini, Latin for 'in the year of the Lord') refer to years after year 1. AD is placed before the year (AD 1066), whereas CE follows the year (1066 CE), matching the position of BCE. In practice, a historian writing '300 BCE' means the same as '300 BC', and a textbook using BCE for pre-1 dates will use CE for post-1 dates — the two always come as a pair.
Common collocations
Etymology
BCE is an abbreviation of 'Before Common Era' (or 'Before Current Era'). The concept of a 'Common Era' was first proposed by the German astronomer Johannes Kepler in the early 1600s as a neutral way to refer to the Christian calendar without naming Christ. The term gradually spread through academic and scientific writing, becoming common in textbooks and scholarly works during the second half of the 20th century. Today it is the preferred form in many historical, archaeological, and religious-studies publications.