mar 15, 44 BC - Julius Caesar murdered by Marcus Brutus and others; End of Roman Republic; beginning of Roman Empire.

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https://en.wikipedia.org/wiki/Assassination_of_Julius_Caesar

https://en.wikipedia.org/wiki/Julius_Caesar#Assassination

https://en.wikipedia.org/wiki/Marcus_Junius_Brutus

https://en.wikipedia.org/wiki/Roman_Republic#Caesar's_Civil_War_and_dictatorship

https://en.wikipedia.org/wiki/Roman_Empire#Transition_from_Republic_to_Empire

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