Light
Little Korea stared up at the sky, narrowing his eyes viciously at the glowing ball of light.
"Korea! What are you doing?" China barked, grabbing the younger country and effectively breaking his highly damaging staring contest.
"I invented the sun," Korea said, beaming at China.
China sighed. "You almost invented blindness. Then what would I do with you? You've got to be more careful Korea!"
The younger nation didn't seem to register this, but instead started gazing off at the eastern horizon. "So.... Where does the light come from?"
China was a bit taken aback. He put his hand on Korea's shoulder, pointing off onto the distant horizon. "See that line there? Where the earth touches the sky? Just a little bit beyond that is where your brother Japan lives," China said, his smile somewhat sad. "It's by his house that the sun rises."
Korea looked surprised, then smiled up at China with great adoration.
"I invented East!"
Sigh. Oh well, hopefully he would grow out of that soon enough.