Which ancient civilization's 'brand identity' featured the double-headed eagle as a symbol of imperial power and authority?

Before modern logos and slogans, ancient civilizations created powerful brand identities through visual symbols that represented their culture, values, and power. These symbols appeared on everything from coins and buildings to military standards and royal seals. Test your knowledge about how ancient civilizations marketed their identities to citizens and rival powers alike through distinctive visual branding elements.

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Byzantine Empire
Ancient Egypt
Aztec Empire
Zhou Dynasty of China