Final answer:
Three Cyclopes were born from the union of Gaia and Uranus, according to Greek mythology. They were known as talented blacksmiths and builders within the mythology.
Step-by-step explanation:
How many Cyclopes were born from the union of Gaia and Uranus? According to Greek mythology, from the union of Gaia (Earth) and Uranus (Sky), three Cyclopes were born. These were the one-eyed giants who were later known as blacksmiths and builders. The Cyclopes were significant figures in Greek myths, often associated with large scale constructions and with forging the weapons of the gods, such as Zeus's thunderbolts and Poseidon's trident. In addition to their craftsmanship, the Cyclopes also played a part in various mythological events, including the Gigantomachy, where the Olympian gods fought against the Giants, the children of Gaia. The Cyclopes, therefore, hold an important place within the pantheon of Greek mythology and their famed skills.