Luoyang (260) — the same event in Records of the Three Kingdoms and Zizhi Tongjian

Records of the Three Kingdoms: Cao Huan, Duke of Changdao, ascended the throne in the Taiji Front Hall at Luoyang (as the Lord of Chenliu).; Zizhi…

What each source says

Records of the Three Kingdoms (Sanguozhi) · AD 260 · 洛陽

Cao Huan, Duke of Changdao, ascended the throne in the Taiji Front Hall at Luoyang (as the Lord of Chenliu).

六月甲寅,入于洛陽,見皇太后,是日即皇帝位於太極前殿,大赦,改年,賜民爵及穀帛各有差。
Location: 魏書 三少帝紀 (卷04) 景元1년

Zizhi Tongjian (Comprehensive Mirror) · AD 260 · 洛陽

On day jiayin, Duke Changdao entered Luoyang, ascended the throne that same day, was fifteen years old, declared a general amnesty and changed the era name.

甲寅,常道鄉公入洛陽,是日,即皇帝位,年十五,大赦,改元。
Location: 卷077 260년 단락7 제2문

Place: 洛陽

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