Harald Bluetooth vs Taejo of Goryeo

Harald Bluetooth unified the Danish tribes into a single kingdom, consolidating power over Jutland, Zealand, and surrounding islands. This unification laid the foundation for the medieval Danish state and established the Gorm dynasty's rule.

Harald Bluetooth converted to Christianity and mandated the conversion of Denmark. He erected the larger Jelling rune stone, which proclaims that he 'made the Danes Christian'. This event marked Denmark's entry into Christian Europe and aligned it with Latin Christendom.

Harald Bluetooth commissioned the Jelling rune stones and burial mounds in memory of his parents. The larger stone, often called 'Denmark's birth certificate', features a depiction of Christ and a runic inscription celebrating his unification of Denmark and Norway.

Harald Bluetooth conquered Norway after defeating Earl Hakon Sigurdsson, bringing Norway under Danish rule. This expansion created a short-lived North Sea empire and demonstrated Danish military power in Scandinavia.

Harald Bluetooth faced a rebellion led by his son Sweyn Forkbeard, who opposed his father's rule and Christianization policies. The rebellion forced Harald into exile, where he died shortly after, ending his reign and leading to Sweyn's ascension.

Wang Geon, a general under the Later Goguryeo kingdom, defeated the forces of Gyeon Hwon at Cheonju. This victory solidified his power and set the stage for the founding of the Goryeo dynasty.

Wang Geon declared himself king and founded the Goryeo dynasty, with its capital at Songak (modern Kaesong). He unified the Later Three Kingdoms (Later Goguryeo, Later Baekje, and Silla) through a combination of military conquest and diplomatic marriages.

Taejo of Goryeo completed the unification of the Later Three Kingdoms by defeating the Later Baekje kingdom. This brought the entire Korean peninsula under Goryeo rule, ending the Later Three Kingdoms period.

Taejo issued the Ten Injunctions, a set of political and cultural guidelines for his successors. These injunctions emphasized Confucian governance, Buddhist patronage, and the importance of maintaining good relations with China.