Analysis of information sources in references of the Wikipedia article "History of Korea" in English language version.
golden age of art and culture.
Korea held a dominant position in the north-eastern seas.
The Mongolian-Khitan invasions of the late tenth century challenge the stability of the Koryo government, but a period of prosperity follows the defeat of the Khitan in 1018..
In Korea, war in the early 1950s cost nearly 3 million lives, including nearly a million civilian dead in South Korea.
Before it ended, the Korean War cost over 3 million people their lives, including over 50,000 US servicemen and women and a much higher number of Chinese and Korean lives. The war also set in motion a number of changes that led to the militarization and intensification of the Cold War.
He launched a military expedition to expand his territory, opening the golden age of Goguryeo.
From what Ennin tells us, it seems that commerce between East China, Korea and Japan was, for the most part, in the hands of men from Silla. Here in the relatively dangerous waters on the eastern fringes of the world, they performed the same functions as did the traders of the placid Mediterranean on the western fringes. This is a historical fact of considerable significance but one which has received virtually no attention in the standard historical compilations of that period or in the modern books based on these sources. . . . While there were limits to the influence of the Koreans along the eastern coast of China, there can be no doubt of their dominance over the waters off these shores. . . . The days of Korean maritime dominance in the Far East actually were numbered, but in Ennin's time the men of Silla were still the masters of the seas in their part of the world.
The first record about Gojoseon appears in Guanzi
He launched a military expedition to expand his territory, opening the golden age of Goguryeo.