Jikji, the oldest known book printed with movable metal type, was printed in Goryeo in 1377.
In the early centuries of the Common Era, Buyeo, Okjeo, Dongye, and the Samhan confederacy occupied the peninsula and southern Manchuria. Of the various states, Goguryeo, Baekje, and Silla grew to control the peninsula as Three Kingdoms of Korea. The unification of the Three Kingdoms by Silla in 676 led to the North–South States Period, in which much of the Korean Peninsula was controlled by Unified Silla, while Balhae succeeded to have the control of northern parts of Goguryeo.
In Unified Silla, poetry and art was encouraged, and Buddhist culture thrived. Relationships between Korea and China remained relatively peaceful during this time. However, Unified Silla weakened under internal strife, and surrendered to Goryeo in 935. Balhae, Silla's neighbor to the north, was formed as a successor state to Goguryeo. During its height, Balhae controlled most of Manchuria and parts of Russian Far East. It fell to the Khitan in 926.
The peninsula was united by King Taejo of Goryeo in 936. Like Silla, Goryeo was a highly cultural state and created the Jikji in 1377, using the world's oldest movable metal type printing press. The Mongol invasions in the 13th century greatly weakened Goryeo. After nearly 30 years of war, Goryeo continued to rule Korea, though as a tributary ally to the Mongols. After the Mongol Empire collapsed, severe political strife followed and the Goryeo dynasty was replaced by the Joseon dynasty in 1392, following a rebellion by General Yi Seong-gye.
King Taejo declared the new name of Korea as "Joseon" in reference to Gojoseon, and moved the capital to Hanseong (old name of Seoul). The first 200 years of the Joseon dynasty were marked by relative peace and saw the creation of Hangul by King Sejong the Great in the 15th century and the rise in influence of Confucianism in the country.
Between 1592 and 1598, Japan invaded Korea. Toyotomi Hideyoshi led the Japanese forces, but his advance was halted by Korean forces with assistance from Righteous Army militias and Ming dynasty Chinese troops. Through a series of successful battles of attrition, the Japanese forces were eventually forced to withdraw, and subsequently signed a peace agreement with diplomats of Ming China. This war also saw the rise of Admiral Yi Sun-sin and his renowned "turtle ship". In the 1620s and 1630s, Joseon suffered from invasions by the Manchu which eventually extended to China as well.
After another series of wars against Manchuria, Joseon experienced a nearly 200-year period of peace. King Yeongjo and King Jeongjo particularly led a new renaissance of the Joseon dynasty.
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