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-miscegenation laws in the United States first had little impact on the enforcement of anti-miscegenation laws. An exception was Pennsylvania, which repealed its anti-miscegenation law in 1780, together with some of the other restrictions placed on free blacks, when it enacted a bill for the gradual abolition of slavery in the state. The Quaker planter and slave trader Zephaniah Kingsley, Jr. publicly advocated, and personally practiced, racial mixing as a way toward ending slavery, as well as a way to produce healthier and more beautiful offspring. These views were tolerated in Spanish Florida, where free people of color had rights and could own and inherit property.