The world in 201 BC — what happened that year

11 events the sources record for this year, grouped by region.

What happened

The Xiongnu surrounded the King Xin of Han at Mayi, and Xin surrendered to the Xiongnu. (Book of Han (Hanshu), Imperial Annals 漢書卷001 漢高祖六年九月)
The emperor campaigned in person, beheaded Xin's general at Tongdi, and Xin fled to the Xiongnu; from then on he won battle after battle from Jinyang to Loufan. (Book of Han (Hanshu), Imperial Annals 漢書卷001 漢高祖七年十月)
In extreme cold, with soldiers' fingers falling off, he was besieged for seven days by the Xiongnu at Pingcheng (the Baideng siege); Chen Ping's secret plan enabled his escape. (Book of Han (Hanshu), Imperial Annals 漢書卷001 漢高祖七年十月)
Using Chen Ping's stratagem, he feigned a tour to Yunmeng, gathered the lords at Chen and seized Han Xin, King of Chu. (Records of the Grand Historian (Shiji), Annals 史記卷008 高祖本紀)
In autumn the Xiongnu besieged Han Xin, King of Han, at Mayi; Xin negotiated for peace but was suspected, so in the ninth month he gave up Mayi; Modu crossed Jiuzhu and attacked Taiyuan and Jinyang. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑卷011 (원문 단락 #794, -201년))

Syphax died at Tibur just before the triumph, but the glory of Scipio's triumph was not diminished (Livy, History of Rome (Ab Urbe Condita) 30.45)
Naval battle off Chios — Philip against Attalus and Rhodes (Polybius, Histories 16.2)
The Rhodian admiral Theophiliscus dies of his wounds (Polybius, Histories 16.9)
Carian campaign — Prinassus is taken by a stratagem (Polybius, Histories 16.11)
Coele-Syrian War — the valor of the people of Gaza (Polybius, Histories 16.22)