Today I went to Seoul museum of History.

I tell you about the History.

King Taejo founded the joseon dynasty in 1392.

He move the capital from Gaegyeong to Hanyang.

First,  I will said the four main gates.

Don-eu-moon(west),Heug-in-ji-moon(east),Sung-lae-moon(south),Sook-jung-moon(north).Second, I saw a The First Hangeul Epic poem. The King Sejong was invented Hangeul. Before the Sejong invented Hangeul, joseon use Chinese characters. This epic poem was the First book written in Korean.Thrid, I tell you about Hopae. Hopae was an ID card. Front, there is the name,class and date of birth. The back has the date of issue. When the people entered the gate,showded the Hopae to gatekeeper. And we can go in.

Last is Water clock. I will talk about Water clock. The water clock is Jagyeoknu. It was invented by the great scientist, Jang Young Sill.