1st A.D.
1st B.C.-1st A.D.
1st half of 4th B.C.
Middle of 4th B.C.
3rd-2nd B.C.
2nd half of 4th B.C.
Classical
6th-1st half of 5th B.C.
1st B.C.
Late 4th-Early 3rd B.C.
Early 4th B.C.
Late 6th B.C.
5th B.C.
Middle of 5th B.C.
21 Jul 1977
6th B.C.