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Hattusa, also Hattuşa, Ḫattuša, Hattusas, or Hattusha, was the capital of the Hittite Empire in the late Bronze Age during two distinct periods.
Capital of the Hittite Empire and discovery site of the earliest securely dated textual attestation of Mitra.
Late Bronze Age treaty from Ḫattuša invoking Mitra, Varuna, Indra and the Nāsatyas among the divine witnesses of the Hittite-Mitanni oath.