In a dialogue of Plato, a text that has generated many imaginative approaches and detaching from those, I identify numerous elements specific to the Proto-Indo-European culture, which allow me to formulate the hypothesis that the subject in question is represented by the ancient civilization itself. Based on this assumption, I discover a lot of new information that needs to be studied and especially about what we now call Homeland. Even if the text is so far from the scientific rigor of today, the relevant cultural elements that are included, point to a much earlier discovery - 360 B.C. of three social functions, for example, or confirm many others contemporary discoveries about the ancient civilization.