A Brief History of Korea: Hangeul, Wars & Modern Korea

Before visiting South Korea, it helps to understand a little of the country's history. Korea's past includes remarkable cultural achievements, devastating wars, and a rapid transformation into the modern society visitors experience today.

Here are four important moments that help explain Korea.

1. Hangeul: A Writing System Created for the People (1443–1446)

One of Korea's most remarkable cultural achievements is Hangeul, the Korean alphabet.

In the 15th century, King Sejong the Great created a new writing system because ordinary people often struggled to read and write using Chinese characters, which were widely used in formal writing.

The new script was called Hunminjeongeum, meaning approximately “the proper sounds for instructing the people.” It was created in 1443 and officially published in 1446.

Hangeul was designed to make reading and writing more accessible. Today, it remains a central part of Korean identity and an important reason why Korea's written language has such a distinctive appearance.

Look for it in Seoul: You can see a statue of King Sejong at Gwanghwamun Square in central Seoul.

Statue of King Sejong at Gwanghwamun Square in Seoul, South Korea

2. The Imjin War: The Japanese Invasions (1592–1598)

In 1592, Japanese forces under Toyotomi Hideyoshi invaded Korea, then ruled by the Joseon dynasty. The conflict lasted until 1598 and became a major regional war involving Joseon Korea, Japan, and Ming China.

The invasions caused enormous destruction and suffering. Korean forces resisted on land and at sea, while local civilian militias also played an important role.

The war left a deep mark on Korean history and collective memory. It is commonly known in Korea as the Imjin War, or Imjin Waeran.

3. Heungseon Daewongun and Korea's Opening to the World (19th Century)

During the 19th century, Korea faced growing pressure from foreign powers seeking diplomatic and commercial access to the country.

Heungseon Daewongun, the father of King Gojong, was a powerful political figure who governed on his young son's behalf. He supported strengthening royal authority and resisted many forms of foreign interference, favoring a defensive approach toward outside powers.

However, Korea's international position changed. In 1876, after growing tensions with Japan, Korea signed the Treaty of Ganghwa, opening several ports to Japanese trade. The treaty was unequal and expanded Japanese influence.

Korea's opening to the outside world was not a simple or peaceful process. It brought new ideas and technologies, but also foreign pressure and struggles over sovereignty. Japan later colonized Korea from 1910 to 1945.

4. The Korean War: A Peninsula Divided (1950–1953)

After Japan's colonial rule ended in 1945, Korea was divided into northern and southern zones of occupation amid growing Cold War tensions. Two separate governments were established in 1948.

On June 25, 1950, North Korean forces invaded South Korea, beginning the Korean War. The conflict drew in international forces, including a United Nations Command-led coalition supporting South Korea and Chinese forces supporting North Korea.

An armistice was signed on July 27, 1953, stopping large-scale fighting. However, no peace treaty formally ended the war, and the Korean Peninsula remains divided.

The war caused immense loss of life and widespread destruction. The rebuilding that followed helped shape the country visitors see today, although the division remains an important part of Korean society and politics.

Understanding Korea Today

These four moments reveal different sides of Korea: a culture that created its own alphabet, a society shaped by invasion and resistance, a country pressured to open to the world, and a nation transformed by war and division.

When you visit Seoul, historical places are more than photo opportunities. They offer a way to understand the people, language, and experiences behind modern Korea.

A little historical knowledge can make your journey much more meaningful.