And we know that the Northern nations, who overran the Roman Empire, had in fact a great plurality of gods, whose attributes, though not their names, bore a close analogy to the idols of the Southern world.
The Druids performed the highest act of religion by sacrifice, agreeably to the custom of all other nations.

They not only offered up beasts, but even human victims: a barbarity almost universal in the heathen world, but exercised more uniformly, and with circumstances of peculiar cruelty, amongst those nations where the religion of the Druids prevailed.

They held that the life of a man was the only atonement for the life of a man.

They frequently inclosed a number of wretches, some captives, some criminals, and, when these were wanting, even innocent victims, in a gigantic statue of wicker-work, to which they set fire, and invoked their deities amidst the horrid cries and shrieks of the sufferers, and the shouts of those who assisted at this tremendous rite.
There were none among the ancients more eminent for all the arts of divination than the Druids.

Many of the superstitious practices in use to this day among the country people for discovering their future fortune seem to be remains of Druidism.