Applied to numerous historical epochs, presumably starting on some specific date of constant reference, among them the following:
The Grecian Mundane Era |
Sept. 1, 5598 B.C. |
The Civil Era of Constantinople |
Sept. 1, 5508 B.C. |
The Alexandrian Era |
Aug. 29, 5502 B.C. |
Ecclesiastical Era of Antioch |
Sept. 1, 5492 B.C. |
The Julian Period |
Jan. 1, 4713 B.C. |
The Mundane Era |
October 4008 B.C. |
Jewish Mundane Era |
October 3761 B.C. |
Era of Abraham |
Oct. 1, 2015 B.C. |
Era of the Olympiads |
July 1, 776 B.C. |
Roman Era |
Apr. 24, 753 B.C. |
Era of Nabonassar |
Feb. 26, 747 B.C. |
Metonic Cycle |
July 15, 432 B.C. |
Syro-Macedonian, or Grecian, Era |
Sept. 1, 312 B.C. |
Tyrian Era |
Oct. 19, 125 B.C. |
Sidonian Era |
October 110 B.C. |
Caesarean Era of Antioch |
Sept. 1, 48 B.C. |
The Julian Year |
Jan. 1, 45 B.C. |
The Spanish Era |
Jan. 1, 38 B.C. |
Actian Era |
Jan. 1, 30 B.C. |
Augustan Era |
Feb. 14, 27 B.C. |
The so-called Vulgar Christian Era |
Jan. 1, 1 A.D. |
The Destruction of Jerusalem |
Sept. 1, 69 A.D. |
Era of the Maccabees |
Nov. 24, 166 A.D. |
Era of Diocletian |
Sept.17, 284 A.D. |
Era of Ascension |
Nov. 12, 295 A.D. |
Era of the Armenians |
July 7, 552 A.D. |
Mohammedan Era of the Hegira |
July 16, 622 A.D. |
Persian Era of Yezdegird |
June 16, 632 A.D. |
The Gregorian Year |
Oct. 15, 1582 A.D. |
Standard Time zones |
Nov. 18, 1883 A.D. |
The Julian Day |
Jan. 1, 1925 A.D. |
