Dear. 현준

Your essay is good! :)

Seoul is located in the center of the peninsula.

And there is a river and surrounded by mountains.

So, Seoul is an important place in history.

Seoul was called by a different name in each era.

(for example, Wiryeseong - the Baekje period)

Finally, The correct spelling of 경성 is Gyeongseong.

well done.

Have a good day.

Bye~