History of July: Where Do We Get That Name?

Bill Petro
3 min readJul 1, 2022

July was renamed for Julius Caesar, who was born that month. Before that, it was called Quintilis in Latin, meaning the fifth month in the ancient Roman calendar. But Marc Anthony changed the name to July after Caesar’s assassination. This was before January became the first month of the calendar year, about the year 450 BC. We currently use the more contemporary Gregorian calendar — recent, as in since AD 1582…

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Bill Petro

Writer, historian, technologist. Former Silicon Valley tech exec. Author of fascinating articles on history, tech, pop culture, & travel. https://billpetro.com