saynisyahan

Curiyahan Iridiyaam waxaa helay saynisyahan Smithson Tennant sanadkii 1803 isla markaana ugu magac daray sanamka Iris eey caabudi jireen qeybo ka mid ah Giriigu.

Curiyahan Baladiyaam waa bir leh midabka naxaasta oo cadaan xiga, taasi oo u helay saynisyahan William Hyde Wollaston sanadkii 1803dii asagoo ugu magac daray sheekooyinkii hore ee Giriiga Pallad.

Ka dib, sanadkii 1864 ayaa saynisyahan u dhashay dalka Jarmalka Julius Lothar Meyer, asagoo tixraacaya jadwalka Chancourtois uu sameeyay shax diiwaan curiye oo ka kooban 44 curiye.