1st appearance of Zeus, the father of the Olympian gods in Greek mythology
The 'Z' in Shazam represents the power of Zeus
1st appearance of Mercury, the Greek deity best known as the messenger of the gods
The 'M' in Shazam represents Mercury who lends his speediness to Shazam
1st appearance of Pandora, a character in classical mythology whose actions caused the evils of mankind to be released into the world