| 1. | The era in use in all Christian countries, which was intended to commence with the birth of Christ. The era as now established was first used by Dionysius Exiguus (died about 540), who placed the birth of Christ on the 25th of December in the year of Rome 754, which year he counted as 1 |
| Noun | 1. | Christian era - the time period beginning with the supposed year of Christ's birth Synonyms: Common era |