Although they famously suppressed the Druids during their invasion of Britain, the Romans were largely tolerant of other religions, provided that the conquered populace incorporated the Imperial Cult into their worship. The Romans sought to equate their own gods with those of the local population. People worshipped these hybrid gods, together with ancient local deities and exotic new cults.
The classical gods of the Graeco-Roman world, such as Jupiter, Juno and Minerva, and even the divine majesty of the emperor, were honoured and worshipped at temples in the cities of Britain, and at the forts of the army stationed in the province.
Adherence to this ‘official’ religion demonstrated loyalty to the emperor, and was a prerequisite for social advance. But almost everybody had a private religious life. Belief in local Celtic gods persisted, and mystery cults originating in distant corners of the empire gained followers too.
Both the Romans and most people in pre-Roman Iron Age Britain believed that as well as supreme or general gods, there were also local gods or spirits (genii) in every person and place. It made sense to honour and placate them.
This meant that when the Romans came to Britain, there was no clash of belief systems. Instead, local gods were merged with the incoming Roman ones – a process known as syncretism. At Bath, the goddess Minerva was identified with the local god Sul, and similarly the Roman god Mars was identified with local war gods. In the Hadrian's Wall area he is found as Mars Cocidius and Mars Belatucadrus.
It is often impossible to be sure which of these Celtic deities existed in pre-Roman Britain and which were imports – via the Roman army – from other Celtic societies in north-west Europe, such as the goddess Coventina at Carrawburgh.
Old and New Beliefs
The persistence of pre-Roman Iron Age beliefs is seen in the significance afforded to horned gods, wet places, heads, and ritual wells and shafts. It is also evident in the occurrence of gods in groups of three, like the matres (mothers), and the three hooded deities (the genii cucullati) carved in stone at Housesteads on Hadrian’s Wall.
Alongside their own gods, the Romans introduced a range of others from outside the classical pantheon. These included Mithras, an eastern god of light and rebirth, favoured by soldiers and some urban communities. His temples have been found at forts on Hadrian’s Wall, including Carrawburgh and Housesteads.
Another religion imported from a far corner of the empire would change the face of England forever.
It is not certain when Christianity was introduced to Britain, but it became increasingly popular among the elite in the 4th century after the conversion of the emperor Constantine in AD 312. Villas were decorated with Christian iconography, like the mosaic found at Hinton St Mary. At Lullingstone Roman Villa in Kent a house-church was decorated with Christian wall-paintings.
Pagan traditions remained strong, though. There is evidence that pagan rituals continued in Lullingstone’s church building, and pagan shrines, often of pre-Roman origin, were built and embellished in large numbers across southern Britain (for example at Jordan Hill and Maiden Castle, both in Dorset).
These temples were focal points for the hopes and fears of rich and poor alike, and were dedicated to both Roman and native deities. Even quite humble people were literate enough to be able to write on lead ‘curse tablets’, which they nailed to the walls of shrines, inciting the gods to destroy those who had wronged or stolen from them.
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