Collection of facts about Goryeo

This post is a collection of facts about Goryeo (918-1392). There are 14 facts listed below. Source: Wikipedia

• Preceded by Later Three Kingdoms period
• Based in Korea
• Founded by Wang Kŏn (Taejo of Goryeo)
• Capital: Kaesong
• Buddhism was the state religion
• Unification of Later Three Kingdoms: Goguryeo, Baekje, Silla (936)
• Goryeo-Khitan War (993-1019)
• Goryeo-Jurchen War (1104-1109)
• Military dictatorship (1170-1270)
• Invaded by the Mongol Empire (1231-1259)
• Vassal state of Yuan dynasty (13th - 14th centuries)
• Red Turban invasions (1359-1360)
• Yi Sŏnggye (Taejo of Joseon) lead coup d'état in 1388
• Seceded by Joseon in 1392