Athenian governance and culture are reconstructed from the Bronze Age into the historical era based on traditions, archaeological contexts and remains, foremost the formal commensal and libation krater. Following Mycenaean immigration from the Peloponnesos during the transitional years, changes in governance are observable. Groups under aristocratic leadership, local and immigrant, aspired to coexist under a surprisingly formal set of stipulations that should be recognized as Athens- first constitution. Synoikismos did not refer to a political union of Attica, sometimes attributed to Theseus, but to a union of aristocratic houses (oikoi). The union replaced absolute monarchy with a new oligarchical-monarchy system, each king selected from one of the favoured aristocratic houses and ruling for life without inheritance. The system prevailed through the late eleventh to the mid-eighth c. and is corroborated by Athenian traditions cross-referenced with archaeological data from the burial g