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Today in History: Tacitus appointed as Roman emperor after Aurelian's assassination

9/25/2025

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Summary

Story summary

On September 25, 275 AD, following the assassination of Emperor Aurelian, the Roman Senate appointed Marcus Claudius Tacitus as his successor. Tacitus, who ruled until 276 AD, faced challenges from the Goths and Heruli during his brief reign, earning the title Gothicus Maximus for his military efforts.

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Story summary

On September 25, 275 AD, following the assassination of Emperor Aurelian, the Roman Senate appointed Marcus Claudius Tacitus as his successor. Tacitus, who ruled until 276 AD, faced challenges from the Goths and Heruli during his brief reign, earning the title Gothicus Maximus for his military efforts.