page_title: 321
hierarchical_section_title: 321
caption_attribution_description: English: Leaf disc dedicated to Sol Invictus. Silver, Roman artwork, 3rd century AD. From Pessinus (Bala-Hissar, Asia Minor). Français&#160;: Disque dédié à Sol Invictus. Argent, œuvre romaine, IIIe siècle ap. J.-C. Provenance&#160;: Pessinus (Bala-Hissar, Asie mineure).
context_page_description: Year 321 was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Crispus and Constantinus. The denomination 321 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
context_section_description: Year 321 (CCCXXI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Crispus and Constantinus (or, less frequently, year 1074 Ab urbe condita). The denomination 321 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
caption: Disc of the Roman sun god Sol Invictus.
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