WORLD HISTORY

Detailed explanation-1: -Major military efforts were taken by Kublai Khan of the Yuan dynasty in 1274 and 1281 to conquer the Japanese archipelago after the submission of the Korean kingdom of Goryeo to vassaldom.

Detailed explanation-2: -Tokimune was 17 when he assumed the office of regent in 1268, the year that the Mongol conqueror of China, Kublai Khan, sent a message demanding that Japan enter into a tributary relationship with the Mongols or face invasion.

Detailed explanation-3: -In the late thirteenth century, the Mongol Empire under Kublai Khan made two unsuccessful attempts to invade Japan. Historian Kawai Atsushi gives the background to the invasion, examines different theories about reasons for its failure, and looks at the aftermath for both sides.

Detailed explanation-4: -Kublai Khan was the grandson of Genghis Khan and the founder of the Yuan Dynasty in 13th-century China. He was the first Mongol to rule over China when he conquered the Song Dynasty of southern China in 1279.