Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of China, Korea, and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea in the south. Its capital is Tokyo.
At over 377,872 square kilometres (145,898 sq mi), Japan is the 62nd largest country by area. It encompasses over 3,000 islands, the largest of which are Honshū, Hokkaidō, Kyūshū and Shikoku. Most of Japan's islands are mountainous, and many are volcanic, including the highest peak, Mount Fuji. It has the world's 10th largest population, with nearly 128 million people. The Greater Tokyo Area, with over 30 million residents, is the largest metropolitan area in the world.
Archaeological research indicates that people were living on the islands of Japan as early as the upper paleolithic period. The first written mention of Japan begins with brief appearances in Chinese history texts from the 1st century AD. Japanese history has been marked by alternating periods of long isolation and radical influence from the outside world. Its culture today is a mixture of outside and internal influences.