Ulsanball

Ulsanball is a cityball of South Koreaball. Ulsanball is the 7th largest city in South Koreaball with population over 1.1 million. Ulsanball is very popular in shipping and have many many boats. It also have the world's second largest and fourth oil refinery.

History
In 1413, Joseonball changed the nameed Uljuball into Ulsanball and became a major city along with Busanball. In 1642, Ulsanball started shipbuilding,

Well, before 1642, during the Japanese invasions of Korea(1592-98), Tokugawaball made a small castle in Ulsanball. Joseon and Ming army couldn't win battles of invading the castle until the end of war.

Ulsanball became a key industrial site during World War 2 and Korean War.                                                         After Hyundai came to Ulsanball, Ulsanball became stronk and became a major cityball of South Koreaball.