Britain's Christian tradition is a varied one. Roman Catholicism was the official religion until Henry VIII's dispute with the Pope over his wish to divorce Catherine of Aragon. Henry broke with Rome and declared himself the Head of the Church of England.
The rise of Protestantism coincided with Henry VIII's argument with Rome. In Scotland a particularly stern form of Protestantism gained control (John Knox, Calvinism). In Ireland the settlement of Protestant English and Scots in the North imported a religious difference.
During the Industrial Revolution reforming Protestant movements such as Methodism took particular hold among the poor, in the north and in Wales.
Today in the UK we have a multi-faith society including Baptists, the Society of Friends (Quakers), Jews, Muslims, Hindus, and Sikhs.