building. In a
speech condemning an abusive governor in Sicily, Cicero warned that
misrule would turn the world against the Rome. “Within the bounds
of Ocean there is no longer any place so distant or so out of the way
that the wanton and oppressive deeds of our countrymen have not
penetrated there in recent years. Rome can no longer hold out against
the whole world—I do not mean against its power and arms in war,
but against its groans and tears and lamentations.”6
Like-minded statesmen worried that unchecked imperial expansion would eventually destroy the republic. The limits of travel
and communication in the ancient world raised serious concerns in
the Senate about whether Roman representative institutions could
include remote alien populations. Even the Greeks brought the threat
of degenerative decadence through their enticing learning, arts, and
material luxuries. Far from exalting in Rome’s triumph over Greece,
Pliny lamented that “through conquering we have been conquered.”7
Conversely, subjugating northern peoples brought the reverse threat
of contamination through the adulteration and debasement of the
superior Roman culture.
Indeed, promiscuity in granting citizenship to useful allies eventually transformed the very nature of the empire. The Greeks defi ed
assimilation, but in the west, where identities were more fl uid, imperial rule produced a new hybrid ruling culture. But this process of
romanization, a modern academic concept, did not mean the metamorphosis of tribal barbarians into civilized Romans. Imperial rule
actually transformed the Romans themselves: as the empire absorbed
a vast array of conquered peoples and cultures, imperial institutions
and values evolved constantly as new groups of elites became citizens.
It is therefore better to think of the culture of the empire as mixed
and borrowed rather than homogenously Roman.
Romans believed that the primary basis of identity in Britain and
the rest of the western empire was the civitas . In the Mediterranean
world this term meant a city-state inhabited by citizens ( cives ). In
western Europe, where there were few actual cities, the civitas became
a tribal unit. These civitates (tribes) were small-scale nonliterate polities, sometimes anchored by an urban center or oppidum , in other
cases not. It is tempting to refer to them as “Celts” on the assumption
Roman
Britain 27
that they spoke variants of the same language and shared a common
culture. Herodotus called the inhabitants of southern Gaul “Keltoi,”
but archaeologically there were signifi cant variations in the material
cultures of western Europe in the preconquest era.
Identities were overwhelmingly local in the ancient world, and a
tribal label was not a mark of barbarity. Even the Romans began as
a tribal people. The original inhabitants of the city of Rome divided
themselves into thirty-fi ve tribes, which made tribal membership a
marker of citizenship. Noncitizens in Rome were, by defi nition, tribeless. Under the republic, the tribe became an electoral unit that
organized citizens for military service and taxation. Romans offi cially
inherited tribal identities from fathers and patrons, but the republic
also had the authority to shift citizens from one tribe to another.
In Britain and the rest of western Europe, the Romans assumed
that “barbaric” tribal peoples in the more conventional modern sense
represented a less advanced stage of social development. But in fact
these tribal identities probably emerged in response to Roman imperial expansion. Conventional historical narratives often excused
empire building as a defensive response to hostile “tribal” peoples, but
it is more likely that culturally diverse and multilingual groups on the
imperial frontier coalesced into more coherent political and social units
when faced with economic domination and possible conquest by a powerful expansionist state. The