The founding of modern Korea was on September 9, 1948. However, there have been many times in history when the Korean Peninsula was established. As early as around 1000 BC, several small states appeared on the Korean Peninsula. In the 4th century B.C., three tribal alliances emerged on the Korean Peninsula, namely Mahan, Jinhan, and Benhan, forming an early state. Since then, the states on the Korean Peninsula have continued to evolve and have been ruled by countries such as Goguryeo, Baekje, and Silla.
During the Northern and Southern Dynasties in China, the three states of Goguryeo, Baekje, and Silla began to fight each other. By the time of the Tang Dynasty, Silla had grown stronger and unified most of the Korean Peninsula. However, at the end of the 9th century, Silla was divided into several small states and was eventually replaced by the Goryeo Dynasty.
The Goryeo Dynasty ruled the Korean Peninsula for 474 years, during which time it underwent many political, economic, and cultural changes. In 1392, Yi Sung-gye overthrew the Goryeo Dynasty and established the Joseon Dynasty. It was the last feudal dynasty in the history of the Korean Peninsula.
Under Japanese colonial rule, the Korean Peninsula gradually became a Japanese colony. During World War II, the Soviet Union and the United States occupied the northern and southern parts of the Korean Peninsula, respectively. After Japan's surrender in 1945, the Soviet Union and the United States withdrew from the Korean Peninsula.
In August and September 1948, the southern and northern parts of the Korean Peninsula became independent states. The southern "Korea**" was headed by Syngman Rhee**;The "Democratic People's Republic of Korea" in the north was led by Kim Il. Since then, the Korean peninsula** has been divided into two countries — the Republic of Korea** and the Democratic People's Republic of Korea.