9 events the sources record for this year, grouped by region.
What happened
China (5)
Wang Zhu, a thousand-household commander of Yidu, conspired with Gao Heshang to kill Ahama, citing his abuses. (History of Yuan (Yuanshi), Annals 元史 卷12 世祖 1282年 3月)
Champa submitted, then rebelled again; Sotu was ordered to attack with five thousand troops from Huai, Zhe, Fujian, and Huguang, with a hundred sea-going boats and two hundred and fifty warships. (History of Yuan (Yuanshi), Annals 元史 卷12 世祖 1282年)
In the case of an anonymous letter by Xue Baozhu of Zhongshan, the Song chancellor Wen Tianxiang was killed. (History of Yuan (Yuanshi), Annals 元史 卷12 世祖 1282年 12月)
They attacked Yixibuxue, pacified the whole land, placed darughachis in three circuits, and left troops to garrison it. (History of Yuan (Yuanshi), Annals 元史 卷12 世祖 1282年)
At night Gao raised his hand and struck him dead; that same night a great commotion (fitna) broke out, and the Kitai people (…) (partly damaged). The victim is probably Ahmad (OCR reads «احد»), cited in lines 26506 and 26551. (Rashid al-Din, Jami' al-tawarikh (Compendium of Chronicles) 87460_djvu.txt 줄 26962–26964)
Korean Peninsula (1)
When the Dongjeong army is defeated, three hundred forty soldiers are sent to guard Happ'o and sixty to guard the royal capital. (Goryeosa (History of Goryeo) 世家 卷29 忠烈 八年)
Southeast Asia (2)
Yuan Right Chancellor Sadu, under the pretext of punishing Champa, led 500,000 troops, but reports said his real aim was invasion. (Đại Việt sử ký toàn thư 本紀卷之五 「壬午四年春二月，占城遣布婆麻各一」)
The emperor stayed at Pingtan Jinsha Bay and discussed with the queen and the officials the plans for defense. (Đại Việt sử ký toàn thư 本紀卷之五 「壬午四年春二月，占城遣布婆麻各一」)