Artuka, also known as the Artuka Empire (帝国アルトゥカ, Teikoku Aruto~uka), was a kingdom that was important to the plot of the Kaguya Island arc of the Sailor Moon musicals. It existed on Earth five thousand years before the present day and it was destroyed accidently by Princess Serenity, who changed the orbit of the comet Coatl so that it wouldn't crash into Earth and caused massive tidal wave in the process of doing so.