…Jeju Island, which the rebels capture, banishing the king of Tamna in November 1271.

The Sambyeolcho had laid low until the end of 1271, during which time, they had sought help from the Japanese Kamakura Shogunate.

Regained their strength to some degree the following year, they repeatedly loot the Korean coast.

A combined Goryeo-Mongol assault begins in February 1272, and crushes the rebels in April.

Hereafter, the Mongols will directly controlled the Tamna kingdom until 1294.

After a visit to Manila, Lapérouse sets out for the northeast Asian coasts the next year, on April 9, 1787.

He sees the island of Quelpart, in the Korean Peninsula, (present-day Cheju in South Korea), which had been visited by Europeans only once before when a group of Dutchmen shipwrecked there in 1635.

He visits the Asian mainland coasts of Korea.

...on faraway Jeju Island and ...