Wikipedia Trail: From Arabian Nights to the Sea of Japan

I started out with Arabian Nights because it was the story I read this week. I found out that this series was framed by another group of storytellers which set the setting in Baghdad. Reading some brief history of the city I found out it was almost destroyed in 1258 by the Mongol Empire. I didn't realize how big the mongol empire actually was until I read that it stretched from western Europe to the Sea of Japan. Lastly, I selected this because I felt like I should familiarize myself with geography anytime possible.

Wikipedia: Sea of Japan