8:21 play_arrow Admiral Yi Sun-sin and his great achievements vankvank visibility 2 schedule 17 years ago favorite
6:22 play_arrow The greatest invention,Movable Metal Type Printing and Jikji vankvank visibility 8 schedule 17 years ago favorite
4:18 play_arrow Korean history - Goguryeo, the powerful kingdom in ancient N vankvank visibility 5 schedule 17 years ago favorite