What's Your K.Q. ? ( Korea Quotient) - Part 2

Discovered some interesting things about Hangul recently. Did you know these things about Hangul already?

1. How many letters did Hangul have originally?
2. Which country probably inspired the shape of the Hangul letters?
3. Which Korean king gets the credit for developing Hangul?
4. Which three basic elements of the universe were the inspiration for some of the Hangul letters?
5. Which two typeface styles from Hangul have been adopted by Microsoft Windows?

For answers, check out:http://en.wikipedia.org/wiki/Hangul