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Altar - Wikipedia
Altar | Religious Ceremonies & Symbolism | Britannica
What Is the Altar in Christianity?
Structure and purpose of altars | Britannica
Altar Meaning - Bible Definition and References
Altar Definition & Meaning - Merriam-Webster
Research Guides: Altars (SC): What is an altar?
High Places, Altars and the Bamah - Biblical Archaeology Society
Smarthistory – The Medieval and Renaissance Altarpiece
Altar (Bible) - Wikipedia