I'm going to answer the questions that a lot of foreigners asked to Korean. Sometimes it can be very long story with complicated history background.
But I am a Korean and I'm not a native English speaker, so my English is not so perfect. Please let me know if there are something that you can't understand, grammatically incorrect or weird English. It will very helpful for me.
Also if you have any questions about Korea, let me know. I'll deal with it.