July and August weren’t new months added in. They were renamings of the existing months Quintilis and Sextilis. The disconnect between the months’ numbers and the names their numbers represent actually comes from a later shifting of the start of the year from March back to January.
I used to think this too, but it turns out that it’s not the case.
July and August weren’t new months added in. They were renamings of the existing months Quintilis and Sextilis. The disconnect between the months’ numbers and the names their numbers represent actually comes from a later shifting of the start of the year from March back to January.