Which religious symbol was originally adopted in the 4th century CE as a strategic 'brand identity' decision by Emperor Constantine to unite his empire under Christianity?

Throughout history, religions have utilized distinctive symbols to represent their faith and teachings. These symbols function much like modern brand logos, creating instant recognition and conveying deep meaning. Test your knowledge about the origins and evolution of these powerful religious 'brand identities' that have shaped human spirituality for centuries. This trivia explores how ancient faiths developed their visual identity long before corporate logos existed.

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The Chi Rho (☧) - combining the first two Greek letters of Christ's name
The Christian fish (Ichthys) - representing the miracle of loaves and fishes
The Latin cross - symbolizing Christ's crucifixion
The Alpha and Omega symbols - representing Christ as beginning and end