How do I keep the Olmec from eating me?

Hint 1 of 10:

You can't impress him with fancy clothes.

Hint 2 of 10:

Don't wear any costumes.

Hint 3 of 10:

Do you know anything about today?

Hint 4 of 10:

The Druids might know something.

Hint 5 of 10:

Go to Stonehenge, in Dover, 1361 BC, to find out more.

Hint 6 of 10:

There is an eclipse today.

Hint 7 of 10:

You might impress the Olmec if you tell him about it.