9 · Classical Mythology and Ancient History
91 · myths about creation: cosmogony, theogony, and the origin of man
91E · origin of man
91E2 · the four world epochs (golden, silver, bronze, iron age); 'Età dell'oro, argento, bronzo, et ferro' (Ripa)
91E24 ·
the iron age, 'Aetas ferrea'; characterized by Mars, war and rapine