5 events the sources record for this year, grouped by region.
What happened
Korean Peninsula (3)
The Japanese raid Goseong, Jungmal and Geoje; the Happ'o cheonho Choi Seon and Yang Gwan and others strike them and cut off more than 300 heads; the record marks this as the start of Japanese raids. (Goryeosa (History of Goryeo) 世家 卷37 忠定 二年)
More than a hundred Japanese ships plunder Suncheon-bu and seize the tax-transport ships of Namwon, Gurye, Yeonggwang and Jangheung. (Goryeosa (History of Goryeo) 世家 卷37 忠定 二年)
Twenty Japanese ships raid Happ'o, and burn its office and the several districts of Goseong and Hoewon. (Goryeosa (History of Goryeo) 世家 卷37 忠定 二年)
Southeast Asia (1)
Rajapatni passed to the abode of the Buddha (died). The king, Hayam Wuruk, was in Majapahit, and his mother Tribhuwana Wijayatunggadewi was entrusted with Jiwanapura. (Nagarakretagama raw 줄 74, 필사 쪽 (92b))