How did Aquarius get its name?
Aquarius - called by the Greeks Hydrochoos, "the Water-Pourer." "Aquarius" is a Latin translation of the Greek name.
According to the most ancient sources, Hydrochoos was considered to be Ganymede, the beloved cupbearer of Zeus (the chief Olympian god).
Other later versions say that Aquarius was Deucalion, a Greek Noah, who was (with his wife) the only survivor of a great flood.