It was the Zeus and his brother Poseidon.
As we all know Zeus' trademark is the lightning bolt.
His brother Poseidon was the god of the sea and horses. I thought
about this the other day (while laying in the bath) that the sea
crashing onto rocks makes a similar sound to a cavalry of horses
thundering over the ground. Both instances the noise that the seas
and horses can make are loud and both can be described as
'thundering'.
Then I though:
Zeus is the god of lightning and;
Poseidon is the god of thunder.
Has anybody ever considered that before? or maybe read about the link
between them somewhere?