| Pre-AD |
| Pre-A.D. [2] |
| Dating inits. |
| Prior to A.D. |
| College degree |
| Engr.'s degree |
| Pre-A.D. abbr. |
| Dating letters |
| Abbr. in dating |
| Dater's letters |
| PC dating term? |
| Pre-A.D. letters |
| Old-time letters? |
| Abbr. after a year |
| Engineering degree |
| Abbr. in old dates |
| Early date finisher |
| Letters prior to AD |
| P.C. dating letters |
| Abbr. for old dates |
| Historian's letters |
| Letters in old dates |
| Abbr. after old dates |
| Bridge builder's deg. |
| Early date identifier |
| Letters in an old date |
| Abbr. in ancient dates |
| Letters used in dating |
| Letters in early dates |
| Archaeologist's letters |
| Artifact-dating letters |
| Letters after old dates |
| Abbr. that follows a year |
| Earlier than 1, initially |
| Letters from an old date? |
| Letters used in old dates |
| Prior to year zero, briefly |
| Initials for pre-A.D. period |
| Letters after a long-ago date |
| Abbr. with some historical dates |
| Period prior to year zero, in dates |
| Way to describe some old dates (abbr.) |
| Letters accompanying some 2,000-year-old+ dates |