Middle Tsushiman

Middle Tsushiman was the fourth stage of the Tsushiman Language, preceded by Old Tsushiman and succeeded by Early Modern Tsushiman.

History
The 13th century marked the Mongol Invasion of Tsushima and Jeju. Unlike Korea, the islands were directly ruled by the Mongols, who set up numerous army camps there. They spoke Middle Mongol, which was the lingua franca of the empire. After the failed Mongol Invasion of Japan, the Mongols withdrew from the islands formally, but a commander named Sokhor Shinghkhor and his retinue remained and created the Sokhor Empire, retaining Mongol influence until the early 14th century.

The Wokou pirates took over the Sokhor Empire and renamed it to the Empire of the Straits, who then organized the Invasion of Jeju and later the Invasion of Goko. They raided much of Korea and northern China, kidnapping large amounts of locals to work as slaves either on the islands or on the boats. They even went as far south as Vietnam and the Philippines.

In the 1600s, the Dutch colonization of Tsushima and Jeju took place, destroying the Empire of the Straits, and thus Middle Tsushiman developed into Early Modern Tsushiman.

Syntax
Middle Tsushiman is similar to Old Tsushiman in terms of its syntax.

Grammar
Middle Tsushiman was affected by Middle Mongol in terms of grammar.