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The Timpson Lyceum · History of Rome – Titus Livius (2025)

The Latin Wars & Alexander I of Epirus – Lecture 22 (History of Rome)

Overview

By 340 BC the alliance that had held central Italy together — the Latin League, with Rome first among nominal equals — had become unsustainable. The Latin cities, who supplied roughly half of every army Rome fielded, demanded a political share to match their military contribution: half the Senate and one of the two consulships. Rome refused, and the resulting Latin War (340–338 BC) ended the old league forever. What Rome built on its ruins — a graded, deliberately unequal patchwork of citizen and allied statuses — became the template for how Rome would absorb the whole peninsula and, eventually, the Mediterranean world.

The lecture pairs this settlement with a contemporaneous drama in the Greek world: the westward adventure of Alexander I of Epirus, uncle and brother-in-law of Alexander the Great, who invaded southern Italy in 334 BC — the very year his nephew crossed into Persia. His failure against the "backward" Italic tribes, and his death at Pandosia, showed how formidable the peoples of Italy had already become, and helps explain why the Samnites were distracted while Rome consolidated Latium. Together the two threads mark Rome's transition from a regional power to the emerging master of Italy.

Key Concepts

Worked Example

Why a graded, non-transitive citizenship system prevents a united anti-Roman bloc. Model the settlement of 338 BC (AUC 754−338=416754 - 338 = 416) as a hierarchy of rights and count the coalition-forming ties it permits.

  1. Rank the statuses from most to least privileged, listing the rights each carries — political union PP (vote and office at Rome), intermarriage CC (conubium), and trade/contract TT (commercium):

civitas  (P,C,T)  >  civitas sine suffragio  (C,T)  >  nomen Latinum  (C,T with Rome)  >  socii  (treaty only).\text{civitas} \;(P,C,T) \;>\; \text{civitas sine suffragio}\;(C,T) \;>\; \text{nomen Latinum}\;(C,T\text{ with Rome}) \;>\; \text{socii}\;(\text{treaty only}).

  1. The crucial design feature: these rights are held with Rome, not with one another. A Latin town keeps conubium and commercium with Rome, but the old league-wide rights among Latin cities are cancelled. The relation "shares full mutual rights" is therefore not transitive — town AA and town BB each share rights with Rome, yet not with each other.
  2. Represent communities as nodes and "can freely combine" as edges. Under the old Latin League, all nn members were mutually linked, giving a complete graph with (n2)=n(n−1)2\binom{n}{2} = \frac{n(n-1)}{2} coalition edges. For even a modest league of n=10n = 10 cities that is (102)=45\binom{10}{2} = 45 ready-made channels for concerted revolt.
  3. Under Rome's post-338 settlement the graph becomes a star: every one of the nn communities is tied only to the hub (Rome), giving exactly nn edges and, critically, 00 edges among the subject communities. For n=10n = 10: 1010 Rome-spoke ties, 45−0=4545 - 0 = 45 coalition ties removed.
  4. Quantify the strategic payoff. The Latins had furnished about half of Rome's manpower, a ratio of roughly Latin troopsRoman troops≈11,\frac{\text{Latin troops}}{\text{Roman troops}} \approx \frac{1}{1}, so a united Latium was a near-peer rival. By severing the (n2)\binom{n}{2} lateral links, Rome reduced that peer to nn isolated dependents, each of which alone fielded only a fraction 1n\tfrac{1}{n} of the former bloc — individually harmless.
  5. The graded statuses also reward loyalty and buy futures: the most faithful communities receive full civitas and are thereby folded permanently into Rome, enlarging the hub rather than merely subduing it. Coalition against Rome now requires first rebuilding the lateral edges Rome dissolved — a coordination problem Rome could detect and crush piecemeal. ■\blacksquare

Summary