Hearth Interactive

Hearth Learning · History

Unit 1 · Keeping Time

Naming the months

Why are the months and days called what they are, and who decided?

2 sources. Moderate.

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Lesson plan

3 class periods of about 45 minutes.

  1. Day 1 · 45 min

    Romulus names the months

    1. 5 minutes: List the twelve month names on the board. Students guess where each name came from. Keep the guesses for day 3.
    2. Open Where the months got their names and read its History tab together. Macrobius wrote around 400 CE, the dinner party is a literary fiction, and the speakers were real Romans. He names the scholars he used.
    3. Read 12.3 and 12.5 aloud: Romulus's year of ten months, starting with March, named after his father, Mars.
    4. Read 12.8, 12.12, 12.13 and 12.14. Students note the two explanations of April, who doubted the first, and which one Macrobius says it is right to believe.
    5. Start the source's activity. Each group takes two or three months (May, 12.16 to 12.20; June, 12.30 and 12.31; July and August, 12.34 and 12.35; January and February, 13.3) and makes a chart: each explanation, who held it, the evidence, and whether it rests on religion, the sound of a word, or politics.
  2. Day 2 · 45 min

    Varro's version

    1. 10 minutes: Groups finish their charts and put them up side by side.
    2. Open How the Romans fixed the year and read 22.9 to 22.13. Fulvius and Junius say Romulus named the months; Varro says the names came from the Latins and were older than Rome.
    3. Groups add Censorinus's explanations of their months to the charts as new rows.
    4. Read 22.16 and 22.17 beside Macrobius 12.34 to 12.37: July and August renamed by law and by a decree of the senate, and later emperors' names that did not last.
    5. Discuss the connection question on Where the months got their names: which writer tells you more clearly what he himself believes, and which approach is more useful to a historian.
  3. Day 3 · 45 min

    Who decided

    1. Read the decree for August in 12.35 closely. Students underline each reason it gives and mark whether it is about religion, war or politics.
    2. Discuss the reliability question on Where the months got their names: what a writer of about 400 CE can tell us reliably about Romulus, and what he cannot.
    3. Return to the guesses from day 1. Students correct them from the class charts and circle the names that rest on the firmest ground.
    4. 20 minutes: Students answer the big question in a paragraph: why the months are called what they are, and who decided. They cite at least one passage from each source and say where the sources disagree.

Read these sources

In this order. Each opens in Hearth Library with the original beside plain English, and a History tab on who made it and how far to trust it.

  1. 1

    Where the months got their names

    Macrobius, 400–430. Moderate.

    A learned dialogue crowded with Latin names, gods and earlier scholars; the notes explain the Roman calendar days and the priests.

    Questions, key terms and an activity
    Kalends
    the first day of a Roman month
    Nones
    the fifth or seventh day of a Roman month
    Ides
    a named day of each Roman month, eight days after the Nones
    flamens
    Roman priests, each of whom served one particular god
    auspices
    signs from the gods, at first read in the flight of birds, that an official watched for to learn whether the gods approved of an action
    intercalary month
    an extra month inserted from time to time to bring the calendar back into line with the seasons
    bissextum
    the extra day of Caesar's calendar, inserted every fourth year by counting the sixth day before the Kalends of March twice; it gave "bissextile," an old name for a leap year
    1. Comprehension According to Macrobius, how many months and days did the year of Romulus have, and what went wrong with it?
    2. Analysis For April, Macrobius gives two explanations of the name and then says which one it is right to believe. For May he reports several and does not choose. What kinds of evidence do his authorities use for their explanations? Why might he decide in one case and not in the other?
    3. Analysis (reliability) Macrobius wrote around 400 CE about Romulus, Numa and Julius Caesar. He puts these words in the mouth of Praetextatus, a real senator, at a gathering that is a literary fiction, and he names the earlier scholars he used. What can this passage tell us reliably, and what can it not?
    4. Connection Read How the Romans fixed the year. Censorinus reports that Varro took March from Mars because the Latins were warlike, not because Mars was Romulus's father, and May from the goddess Maia. Compare how Censorinus and Macrobius handle the disagreements among their authorities. Which writer tells you more clearly what he himself believes, and which approach is more useful to a historian?

    Activity Groups each take two or three months and make a chart with one row for every explanation of the month's name that Macrobius gives. For each row they write who held the view (such as Fulvius Nobilior, Cingius, Varro or Cornelius Labeo, or simply "some people"), the evidence offered, and whether that evidence comes from religion, from the sound of a word, or from politics. The class then puts the charts together and discusses which kind of evidence is most common and which month names rest on the firmest ground.

  2. 2

    How the Romans fixed the year

    Censorinus, 238. Moderate.

    A short, orderly account crowded with numbers and Roman names; the notes explain the calendar terms.

    Questions, key terms and an activity
    civil year
    the calendar year that a city keeps by its own rules, as opposed to the natural year
    natural year
    the time the sun takes to complete its course, which brings the seasons back around
    full and hollow months
    the longer months were called "full" and the shorter ones "hollow"; in the ten-month year they had 31 and 30 days
    pontiffs
    the members of Rome's most important group of priests; their head was the chief pontiff
    consul
    one of the two chief officials of Rome, who served for one year; a year could be named after its consuls
    Olympiad
    a four-year period between the games at Olympia, counted from 776 BCE
    bissextum
    the extra day of Caesar's calendar, inserted every fourth year by counting the sixth day before the Kalends of March twice
    1. Comprehension According to Censorinus, who was given the task of inserting the extra months, and what did most of them do with it?
    2. Analysis Censorinus says that most Greek cities fitted their months to the moon, and that the Romans copied them when they had a year of 355 days. Why could a calendar built on the moon not stay in step with the sun, and how did Caesar's reform deal with the problem?
    3. Analysis (reliability) Censorinus wrote in 238 CE, nearly three hundred years after Caesar's reform, in a book he gave his patron as a birthday present. The scholar Teuffel thought he took most of his learning from Suetonius, and the manuscripts give one of his numbers differently from the figure editors print. What reasons do we have to trust his figures for the reform, and what reasons to be careful?
    4. Connection Read Where the months got their names. Macrobius makes the last year of confusion 443 days long, while Censorinus gives 445. Macrobius also tells of a later mistake by the priests, who inserted the extra day too often until Augustus corrected it; Censorinus does not mention this. When two ancient writers disagree or one leaves something out, what would you want to know about each before deciding whom to follow?

    Activity Students draw a timeline of the Roman year in the stages Censorinus gives, from Romulus's ten months of 304 days, through the twelve months of 355 days and the extra month every other year, to Caesar's year of 365 days and a quarter. At each stage they write who made the change (or note that he names no one), according to which authority, and the reason Censorinus gives. They then check his sum for the year 46 BCE (355 + 23 + 67 = 445) and read the note on the manuscripts' 64 days to see how an editor decides which number to print.

To finish

Come back to the question: Why are the months and days called what they are, and who decided? Ask students to answer it with evidence from at least two of the sources, and to say which source they trust most and why.

Standards

Students chart each explanation of a month's name with who held it and on what evidence, and note where Macrobius and Censorinus disagree.

6 standards: Common Core State Standards, Literacy in History/Social Studies; C3 Framework for Social Studies State Standards
  • RH.9-10.3 Trace a chain of events and judge whether earlier ones caused later ones.
  • RH.9-10.9 Compare how several primary and secondary sources treat one topic.
  • RH.11-12.3 Weigh rival explanations of events, pick the best supported, and say what stays uncertain.
  • RH.11-12.9 Join several primary and secondary sources into one coherent account, noting where they disagree.
  • D2.His.11.9-12 Judge a source's use for a question from who made it, when, where, for whom and why.
  • D2.His.13.9-12 Judge whether a historian's account rests on suitable sources.

Go further

Other units
Fixing the year · Living by the calendar
Encyclopedia
The Julian calendar
Play
Knot Count
Collection
Every source in Keeping Time