It was belived in for along time.They were passed by family.
Why did it matter?
Because it taught moral lessons, explained nature, and provide entertainment.
Dowling, Mike. "Ancient Greek Mythology at mrdowling.com." www.mrdowling.com. Updated January 13, 2014 . Web.
What are the main gods?
Zeus, Poseidon, Hades, Hercules, Athena, Eros, and Muses
"Greek and Roman Mythology." Infoplease. Infoplease, n.d. Web. 28 Jan. 2014.
Also a good site to see the god is http://www.infoplease.com/ipa/A0197622.html