7 events the sources record for this year, grouped by region.
What happened
China (2)
Seven years later, King Zhuangxiang of Qin destroyed Eastern Zhou; both Eastern and Western Zhou entered Qin, and the sacrifices of Zhou ceased. (Records of the Grand Historian (Shiji), Annals 史記卷004 周本紀)
Qin's Meng Ao attacked Han and took Chenggao and Xingyang, and for the first time established Sanchuan Commandery. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷006 (원문 단락 #435, -249년))
South Asia (1)
In his 19th year he dedicated a very pleasant cave on the Kalatika hill as a rainy-season residence (Edicts of Ashoka Barabar cave III)
Southern Europe (4)
After a storm wrecks the Roman siege works, the Lilybaeum garrison burns them (Polybius, Histories 1.48)