• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

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• 2 · Nature
• 21 · the four elements, and ether, the fifth element

21C · fire (one of the four elements)

• 21C0 · 'Fuoco', 'Carro del fuoco' (Ripa)