10 most difficult Korea riddles

The Great Korean Empire was proclaimed in October 1897 by Emperor Gojong of the Joseon dynasty. From 1905 onward, Korea became a protectorate of Japan, and in August 1910 the Korean Peninsula was annexed outright by Japan, bringing the Korean Empire and its monarchy to an end and beginning 35 years of Japanese colonial rule in Korea.

The aftermath of World War II left Korea partitioned along the 38th parallel, with the north under Soviet occupation and the south under US occupation. The Korean War broke out when Soviet-backed North Korea invaded South Korea, though neither side gained much territory as a result.

For the initial months of the war, the P-80 Shooting Star, F9F Panther, and other jets under the UN flag dominated North Korea's prop-driven air force. The Chinese intervention in late October 1950 brought MiG-15 Fagot to battle, one of the world's most advanced jet fighters. MiGs were often steered by well trained Soviet pilots, so the aerial warfare continued till the end of the war.

With over 78 million speakers, Korean has more speakers than all other isolated languages combined.

There are various styles of chopsticks in different cultures. In Korea, the chopsticks are made of metal, and are paired with a spoon. There are also differences in the eating etiquette.

Words "four" and "Death" have very similar pronunciation in Chinese, Vietnamese, Korean and Japanese. In East Asia many buildings do not have a 4th floor. Some high-rise residential buildings omit all floor numbers with "4", e.g., 4, 14, 24, 34 and all 40–49 floors.

The name of the sea comes from the yellow color of its waters, caused by large amounts of silt brought by the Yellow River.

The Arch of Reunification is a sculptural arch located south of Pyongyang, the capital of North Korea. It was opened in August 2001 to commemorate Korean reunification proposals put forward by Kim Il-sung.

With a population of 50.2M, South Korea is more than twice as populous as North Korea (24.5M).

When the Japanese took over Korea, the Sea was the East Sea. The Sea of Japan is a self proclaimed name by the Japan, so that the Japanese would get the fishing ground and all the islands that don't belong to them.