When is the right time for them to learn about Greek Mythology? When they are interested in it.
We went to the library. I knew the librarian would guide me on my quest for Children’s Books on Greek Mythology but I wondered if there was even anything like it there…the library isn’t Google, right? She was all like ‘pffft, whatev, they’re exactly right over here…’
The six year old said, “Remember when we used to draw medusas? that was way back in the time when we became best buddies!”
This was actually long after we became best buddies. It was way back when we were introduced to Medusaceratops, similar in appearance to triceratops with more ‘snakehair-like’ horns. 
He wanted to know why it was called Medusaceratops, so I told him the story of Medusa…my knowledge coming from one of my favourite movies, Clash of the Titans. (The 2010 remake)
I told him I thought he would be ready to watch this movie…I ‘proofread it’ the night before, and noticed while quite intense, it wasn’t gory or anything, and the sex scene was limited to a man and a woman lying down in bed, cut scene to him getting out of bed (no nudity – everything’s covered) so to the uninitiated, it looks like two people having a sleep together 🙂 The interesting thing here is the 6 seconds or so of this scene happened the same time as the only time mommy walked past the computer, who quickly went into panic mode 🙂
Before watching the movie, I also searched out on youtube for a ‘making of’ video of the movie, just to remind him how movies like this get made. It’s a great little video that got him more than pumped for the movie!
So I made the six year old a Lego Pegasus because he’s interested in Greek Mythology. The four year old is starting to be interested in Greek Mythology because there’s a Lego Pegasus.
The next day, I thought it would be funny to let mom know my new fact about Icarus’s dad being Daedelus. (A character from an old classic cartoon, The Mighty Hercules). The 6yo jumped in and told her the tale of Icarus, covering all the facts we read in a paragraph the day before. (His dad told him don’t fly too close to the sun on account of his wings being made of wax and feathers and he died by falling into the sea)
