-
18 b.c.
three navive kigdoms in power koguryo, paekche ,and silla -
320s a.d.
buddhism comes tokorean peninsula from china -
a.d.647
first astronomcal observatory in asia -
a.d. 668
silla kingdom unites all korea time of peace and culture. -
a.d. 918
koryo kingdom replaces the silla source of the name korea -
a.d. 1200s
artisan carve all buddhist books on wooden blockes to be used in printing. -
a.d.1400s
koreans invent rain guage,barometer, iron,hanging brigde ,ironclad,warship,and metal movable type
