What Egyptian calendar scheme will you use to find out when will the full moon can be seen again between the horns of Taurus again? it's also called the principle of 12 and 13...discovered by Meton

Your internet settings won't let you play MightyQuiz. :(

But... we've got a solution!

• 1) Turn on cookies in your browser.
• 2) Reload the page.
• 3) Play! :)

Your internet settings won't let you play on PrepMe. :(

But... we've got a solution! :)

You can play in a new window here. Easy!