Xianyang (350 BC) — the same event in Records of the Grand Historian and Zizhi Tongjian

Records of the Grand Historian: He built Xianyang and raised the Jique towers; Qin moved its capital.; Zizhi Tongjian: Shang Yang built gate towers…

What each source says

Records of the Grand Historian (Shiji), Annals · 350 BC · 咸陽

He built Xianyang and raised the Jique towers; Qin moved its capital.

十二年,作為咸陽,筑冀闕,秦徙都之。
Location: 史記卷005 秦本紀

Zizhi Tongjian (Comprehensive Mirror) · 350 BC · 咸陽

Shang Yang built gate towers and palaces at Xianyang and moved the capital there; he banned fathers and sons from sharing a room, merged small villages into thirty-one counties, abolished the jingtian system and carried out other reforms.

秦商鞅-{築}-冀闕宮庭-{於}--{咸}-陽,徙都之。
Location: 資治通鑑 卷002 (원문 단락 #130, -350년)

Place: 咸陽

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