Mars (mythology)
Iconography and symbol

In Roman art, Mars is depicted as either bearded and mature, or young and clean-shaven. Even nude or seminude, he often wears a helmet or carries a spear as emblems of his warrior nature. Mars was among the deities to appear on the earliest Roman coinage in the late 4th and early 3rd century BCE.

On the Altar of Peace (Ara Pacis), built in the last years of the 1st century BCE, Mars is a mature man with a "handsome, classicizing " face, and a short curly beard and moustache. His helmet is a plumed neo-Attic - type. He wears a military cloak (paludamentum) and a cuirass ornamented with a gorgoneion. Although the relief is somewhat damaged at this spot, he appears to hold a spear garlanded in laurel, symbolizing a peace that is won by military victory. The 1st-century statue of Mars found in the Forum of Nerva (pictured at top) is similar. In this guise, Mars is presented as the dignified ancestor of the Roman people. The panel of the Ara Pacis on which he appears would have faced the Campus Martius, reminding viewers that Mars was the god whose altar Numa established there, that is, the god of Rome's oldest civic and military institutions.

Particularly in works of art influenced by the Greek tradition, Mars may be portrayed in a manner that resembles Ares, youthful, beardless, and often nude. In the Renaissance, Mars's nudity was thought to represent his lack of fear in facing danger.
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