Today, I went to Mong chon museum,I learned about seven branched sword, when you say sword, you'll think about war, but no, that sword is about relationship with japan. We can found out that Baekjae's iron technology is very very high. About Bronze Incense burner,at the top, there is a phoneix which means heaven,the place where is the lid is paradise.The underpart where the dragon means the underworld.The Baekjae sent Budda statue to Japan to become friends with them which became the japan's most important first national treasure.It means, Baekjae respect or become friends with japan. One of the tomb of Baekjae's king, the bricks are horizontal and vertical which is from china. We could know that Baekjae had a culture from china