| January | Janus, the Roman god of the doorway |
| February | the Roman purification ritual Februa, which occured in the middle of this month |
| March | Mars, the Roman god of war |
| April | several different theories, it's unknown which is correct |
| May | Maia, a Greek goddess |
| June | Juno, a Roman goddess |
| July | Julius Caesar (born in this month) |
| August | Ceasar Augustus |
| September | Roman word for 'seven' |
| October | Roman word for 'eight' |
| November | Roman word for 'nine' |
| December | Roman word for 'ten' |