What is significant about Donatello's David?

Donatello's bronze statute of David is famous as the first unsupported standing work of bronze cast during the Renaissance and the first freestanding unclothed male sculpture made since antiquity. The youth is complete without clothing, apart from a laurel-topped hat and boots, and bears the sword of Goliath.

Explanation:

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answer; /// i believe that its (c) universal symbols;