View a calendar of festivals and holy days for each month by clicking its name.
- January
- From the Roman republican calendar month Januarius, named for Janus, god of beginnings and doorways.
- February
- From Roman republican calendar month Februarius, named for Februa, the feast of purification held on the 15th.
- March
- From Roman republican calendar month Martius, named for the god Mars.
- April
- From Roman republican calendar month Aprilis. The Romans considered the month sacred to the goddess Venus, and its name may derive from that of her Greek equivalent, Aphrodite.
- May
- From Roman republican calendar month Maius, probably named for the goddess Maia.
- June
- From Roman republican calendar month Junius, probably named for the goddess Juno.
- July
- From Roman republican calendar month Julius, named for Julius Caesar in 44 BC.
- August
- From Roman republican calendar month Augustus, named for the emperor Augustus in 8 BC.
- September
- Seventh month of early Roman republican calendar, from Latin septem, or seven.
- October
- Eighth month of early Roman republican calendar, from Latin octo, or eight.
- November
- Ninth month of early Roman republican calendar, from Latin nove, or nine.
- December
- Tenth month of early Roman republican calendar, from Latin decem, or ten.
Photo credits: (Related Resources) (1) Opening page of calendar, elaborate border design with human figures, 1530, Digital Collections, The New York Public Library on Wikimedia Commons (2) Medieval folding almanac, ca. 15th century, Wellcome Library on Wikimedia Commons, Creative Commons CC BY 4.0
