6th-5th B.C.
First quarter of 5th B.C.
Late 6th B.C.
Protogeometric-First half of 6th B.C.
22 Mar 1939
Early 5th B.C.
Geometric-6th B.C.
Protogeometric
Third quarter of 6th B.C.
Protogeometric-Early 6th B.C.