The were two Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

ese–Yuan

Yuan Dynasty

The Yuan Dynasty , or Great Yuan Empire was a ruling dynasty founded by the Mongol leader Kublai Khan, who ruled most of present-day China, all of modern Mongolia and its surrounding areas, lasting officially from 1271 to 1368. It is considered both as a division of the Mongol Empire and as an...

 trade ships launched in 1342 in order to procure funds for the construction of Tenryū-ji

Tenryu-ji

—more formally known as —is the head temple of the Tenryū branch of Rinzai Zen Buddhism, located in Susukinobaba-chō, Ukyō Ward, Kyoto, Japan. The temple was founded by Ashikaga Takauji in 1339, primarily to venerate Gautama Buddha, and its first chief priest was Musō Soseki. Construction was...

. They were approved by the Muromachi shogunate, and released to the command of a Hakata

Hakata-ku, Fukuoka

is one of the seven wards of Fukuoka City, Fukuoka Prefecture, Japan. It is best known as the location of Fukuoka's main train station, Hakata Station.-Geography:...

 merchant named under the condition that he donate 5,000 kanmon (equivalent to 5,000,000 mon) to the temple irrespective of the mission's commercial success.