Proto-Indo-Iranian religion means the religion of the Indo-Iranian peoples prior to the earliest Vedic (Indo-Aryan) and Zoroastrian (Iranic) scriptures. These share a common inheritance of concepts including the universal force *rta (Vedic rta, Avestan asha), the sacred plant and drink *sauma (Vedic Soma, Avestan Haoma) and gods of social order such as *mitra (Vedic Mitra, Avestan and Old Persian Mithra, Miϑra), *bhaga (Vedic Bhaga, Avestan and Old Persian Baga). Proto-Indo-Iranian religion is an archaic offshoot of Indo-European religion.