Assertion: altar's structure | /r/ObjectUse | used in ancient ritual
Facets:
Source sentences:
text: The question of the identification of fire altars is further complicated by our lack of understanding of the exact role of sacred fire in ancient Iran (and how that role may have changed over time), how and when the structures identified as fire altars were used in ancient ritual, and whether the appearance of a fire altar indicates the presence of Zoroastrian ritual or some other, unknown religion (Genito, 1987; Herrenschmidt; in general see Boyce, Zoroastrianism I and, II; Boyce and Grenet, Zoroastrianism, for criteria for identifying the presence of Zoroastrian religion).