Catholic Church in England and Wales his mock-heroic poems, Rape of the Lock and The Dunciad. Around this time, in 1720, Clement XI proclaimed Anselm of Canterbury a Doctor of the Church. In 1752, mid-century, Great Britain adopted the Gregorian calendar decreed by Pope Gregory XIII in 1582. Later in the century there was some liberalisation of the anti-Catholic laws on the basis of Enlightenment ideals. In 1778 a Catholic Relief Act allowed Catholics to own property, inherit land and join the army. Hardline Protestant mobs reacted in the Gordon Riots in 1780, attacking any building in London which was associated with Catholicism or owned by
Anti-Catholicism in the United Kingdom was to open it. The Great Fire of London in 1666 was blamed on the Catholics and an inscription ascribing it to 'Popish frenzy' was engraved on the Monument to the Great Fire of London, which marked the location where the fire started (this inscription was only removed in 1831). The 'Popish Plot' involving Titus Oates further exacerbated Anglican-Catholic relations. The beliefs that underlie the sort of strong anti-Catholicism once seen in the United Kingdom were summarized by William Blackstone in his "Commentaries on the Laws of England": The gravamen of this charge, then, is that Catholics constitute an "imperium