The founding of Goguryeo in 37 BCE by King Dongmyeongseongwang Jumong is one of the most pivotal events in Korean history. While known as the son of King Geumwa of Northern Buyeo, Jumong was mythologically a prodigious figure, born to Hae Mosu, son of the Heavenly Emperor, and Yuhwa, daughter of the River God Habaek. From a young age, he displayed extraordinary archery skills and strategic acumen, establishing a unique presence within Buyeo. However, his remarkable abilities provoked the envy and jealousy of King Geumwa's other sons, including Daeso, ultimately putting Jumong's life in peril. Feeling his life threatened, Jumong resolved to escape Buyeo. His escape is replete with mythical elements. Upon reaching the Eomlidaesu River, pursued by his enemies, Jumong implored the fish and turtles for help. They miraculously rose to the surface, forming a bridge that allowed him to cross the river, symbolizing his divine favor and heroic destiny. Moving south, Jumong arrived at Jolbon (卒本), a fertile and strategically vital region located in the Dongga River basin, a tributary of the Amnokgang (Yalu River). Here, he gathered surrounding minor states and tribes, expanding his influence through exceptional leadership and military prowess. Finally, in 37 BCE, Jumong founded Goguryeo and ascended to the throne as King Dongmyeongseongwang, firmly establishing the foundations of the nascent state. Jumong's establishment of Goguryeo marked the dawn of a powerful state in the northern Korean Peninsula and Manchuria. This signified the birth of a major power that would profoundly influence the international order of East Asia. Following its founding, Goguryeo secured vast territories and grew into a formidable power, contending for hegemony in East Asia against various Chinese dynasties. Its unique culture and potent military became a source of pride for the Korean people, playing a crucial role alongside Baekje and Silla in the Three Kingdoms period and leaving an indelible mark on the history of the Korean Peninsula. The spirit of Goguryeo's ambition, pioneering drive, and its history of commanding vast territories remain deeply ingrained in the Korean identity and national pride to this day.