Hi! Thanks for your interest in modelling Ancient Greece on Wikidata! I saw that you added country (P17)Ancient Greece (Q11772) on a bunch of items; sadly this is always incorrect, as ancient Greece was never a country in a modern sense but was instead a mosaic of independant states (like Athens, Sparta, etc.). In most case culture (P2596) is a more correct property for that. Feel free to ask if some of my edits aren't clear. Cheers,