490-460 B.C. Early 5th B.C.-480 B.C. 575-535 B.C. 1st half of 1st B.C. 500-480 B.C. 4th quarter of 5th B.C. 15 A.D.-2nd half of 1st A.D. 1st-2nd A.D. Last years of 6th B.C.-480 B.C. 6th B.C. 2nd half of 6th B.C. 2nd half of 7th-Early 6th B.C. 2nd quarter of 5th B.C. 2nd quarter of 4th B.C. Early 5th B.C. 1st quarter of 5th B.C. 340-310 B.C. 200 B.C.
Early 6th B.C. 410-390 B.C. 1st quarter of 4th B.C. End of 6th B.C.-480 B.C. Early-Middle of 6th B.C. 2nd B.C. 490-480 B.C. 2nd-3rd quarter of 6th B.C. 290 B.C. 3rd quarter of 6th B.C. 150 B.C. 4th quarter of 2nd B.C. 7th B.C., down to beginning of last quarter 4th quarter of 5th B.C. 2nd-3rd quarter of 4th B.C., but not far down into 3rd quarter Late 7th-Early 6th B.C.
3rd A.D. 3rd-4th A.D. 1st half 3rd A.D. 2nd-3rd A.D. Late 3rd-early 4th A.D. 4th A.D. 2nd-early 3rd A.D. Early 3rd A.D. 3rd-early 4th A.D. 2nd half 3rd-4th A.D.