The world in 225 BC — what happened that year

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

What happened

Wang Ben attacked Wei and diverted the course of the Yellow River into Daliang; the city collapsed, the King of Wei surrendered, and all his land was taken. (Records of the Grand Historian (Shiji), Annals 史記卷006 秦始皇本紀)
Wang Ben attacked Wei, drew the course of the Yellow River and flooded Daliang; in the third month the walls collapsed, King Jia of Wei surrendered and was killed, and Wei was destroyed. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑卷007 (원문 단락 #505, -225년))

Achaean representatives come again to the Argos conference and Cleomenes comes down from Tegea (Plutarch's Parallel Lives Plut. Agis&Cleomenes 17)
Cleomenes takes control of Argos (Plutarch's Parallel Lives Plut. Agis&Cleomenes 19)
The Gauls enter Etruria and defeat a Roman army near Faesulae (Polybius, Histories 2.25)
When Aemilius from Ariminum rushes to Etruria, the Gauls retreat (Polybius, Histories 2.26)
Atilius, coming from Sardinia, lands at Pisae and blocks the Gauls' route (Polybius, Histories 2.27)
Battle near Telamon — the Gauls, caught between two Roman armies, are crushed (Polybius, Histories 2.28)
Aratus sends envoys to Antigonus Doson to ask for help (Polybius, Histories 2.49)

Places where the world territory data shows a change of borders in this year.