The history of Korea falls into three sharply marked periods. The first is known as the era of the Three Kingdoms—it ended with the year 918, a year easy to remember because exactly one thousand years ago. The second is the period of the Koryu Dynasty; it began with the year 918 and ended in 1392, a date easy for us to remember because precisely a century before the discovery of America by Columbus. The third period, known as the period of the Yi Dynasty, began with 1392 and continued until 1910, when the independent history of Korea ended with its absorption by Japan. The history of Buddhism in Korea is divided into the same three periods, as the things which caused breaks in the national history were related to the religion. We shall then speak of the Buddhism of the Three Kingdoms, of the Koryu Dynasty and of the Yi Dynasty. [Illustration: PLATE II General view: Pomo-sa [Page 31]] The early period is called the era of the Three Kingdoms because at that time the peninsula was occupied by three different nations. The largest, in the north, was called Koguryu. Japanese pronounce the name as Koma. It occupied more than half of the peninsula. Its capital city was P’yeng-Yang, still a city of importance. The second kingdom was smaller; in the southwest of the peninsula, it was known by the name of Pakche, which is pronounced by the Japanese Kudara. The third kingdom occupied the southeastern section of the peninsula. It was larger than Pakche, but smaller than Koguryu, and was called Silla, Japanese, Shiragi. Such then, were the three kingdoms which existed through a period of hundreds of years. Unfortunately all names in Korea have several pronunciations. They are usually spelled with Chinese characters. If a Chinese pronounces the name, he will pronounce it in a certain way, dependent upon what part of China he comes from; a Korean will pronounce the same characters quite differently; a Japanese has still a different pronunciation. It is for this reason that the Korean and Japanese names of these kingdoms differ; the same characters are pronounced Koguryu by the Koreans and Koma by the Japanese; Pakche on the Korean tongue becomes Kudara with the Japanese; and where the Korean says Silla, the Japanese says Shiragi.