5 events the sources record for this year, grouped by region.
What happened
China (1)
He ordered the imperial grandson Temür to soothe all the armies and to subdue the rebel princes Huoluhuosun and Hadan Tulugan. (History of Yuan (Yuanshi), Annals 元史 卷15 世祖 1288年)
Japan (1)
3rd month, day 15: the enthronement is held at the government office (Masukagami 줄 240)
South Asia (1)
In a small village of the Maabar region lie the relics of the Apostle Thomas; a miracle occurred in 1288. (Marco Polo, The Travels (Yule translation) Book III ch. XVIII (Yule 영역 가운데 DISCOURSING OF THE PLACE WHERE LIETH THE BODY OF S))tradition
Southeast Asia (2)
Yuan troops gathered at the Bạch Đằng river and tried to meet Zhang Wenhu's Yang ships, but they did not meet. (Đại Việt sử ký toàn thư 本紀卷之五 「丁亥三年春二月，元聖天感皇太后崩」)
In the first month the Prince of Zhennan pursued with several commanderies but could not catch them, and led his troops back to Jiaozhi city (Jiaozhi city is present-day Hanoi, Chenglong). (Xu Zizhi Tongjian (Continuation of the Comprehensive Mirror) 권188 正月 단락188.0.1)