Capitulum I — Imperium Rōmānum

The first chapter of Familia Romana flies you over the map of the Empire: provinces, rivers, islands, towns. Beneath the geography, Ørberg is quietly installing three fundamental mechanisms. Here they are, spelled out.

The nominative: the case of the subject (and the predicate)

In Latin, a word's function is written in its ending, not in its position. The nominative is the case of the subject — what the sentence is about — and of the predicate noun or adjective linked to it by esse:

Dānuvius fluvius magnus est. — The Danube is a big river.

Dānuvius (subject), fluvius (predicate noun) and magnus (adjective) are all nominative. In this chapter you will meet only nominatives — plus, inside the in phrases, a few ablatives (see the box below).

Singular and plural: three families of endings

The chapter drills three patterns; learn them as three columns:

Three classic traps:

• The neuter plural -a looks like a feminine singular: oppida is a plural ("towns"), not a feminine singular.
• Plural -ae is a diphthong (īnsulae); plural -ī is long (fluviī).
• Macrons matter: Eurōpa (nominative) and Eurōpā (ablative, after in) are different forms.

est / sunt

The verb agrees in number with its subject:

Corsica īnsula est. — Corsica is an island. Rhēnus et Dānuvius fluviī sunt. — The Rhine and the Danube are rivers.

Two subjects joined by et count as a plural: hence sunt. You will also see est/sunt placed first in the sense of "there is / there are": In Galliā sunt multa oppida.

magnus, magna, magnum: a first taste of gender

The adjective agrees with its noun: fluvius magnus (masculine), īnsula magna (feminine), oppidum magnum (neuter). For now the chapter only asks you to notice these three endings; the full gender system arrives in chapter II. Build the reflex: the adjective's ending follows its noun's.

Asking questions

• -ne, attached to the first word, turns the sentence into a yes–no question: Est*ne Sardinia īnsula?*
• num expects the answer "no": Num Rōma in Galliā est? ("Rome isn't in Gaul, is it?") — Nōn est.
• ubi asks for a place: Ubi est Nīlus?
• quid asks for a definition: Quid est prōvincia?

Litterae et numerī

The third part of the chapter (LITTERAE ET NVMERI) teaches you to talk about Latin — in Latin:

• Numbers: ūnus (I), duo (II), trēs (III), sex (VI), mīlle (M). The Roman numerals are given in the book's margin. The ordinals prīmus, secundus, tertius are used for numbering: capitulum prīmum, syllaba secunda.
• Metalanguage: littera (a letter), syllaba (a syllable), vocābulum (a word), numerus (a number), capitulum (a chapter), exemplum (an example), pēnsum (the end-of-chapter exercise). These are the words the all-Latin book will use to talk about itself from now on — learn them at once, you will meet them on every page.
• The GRAMMATICA LATINA section introduces the terms singulāris and plūrālis — in the book's usage, masculine nouns (singulāris = the singular).

Box: in + ablative

When you read in Italiā, in Āfricā, in imperiō Rōmānō, the noun after in carries the mark of the ablative (long -ā, long -ō). For now, just recognize this pattern, which answers the question ubi? — the full declension will come in due course. Do not confuse Italia (subject) with in Italiā (place phrase).

One-line takeaway: subject and predicate in the nominative; -a/-ae, -us/-ī, -um/-a; one subject → est, several → sunt.