‘Byd newydd ymha un y preswylia cyfiawnder’: Gweledigaeth Morgan John Rhys (1760–1804) (‘A new world where justice dwells’: Morgan John Rhys’ (1760–1804) vision)

In this article it is argued how Morgan John Rhys’ (1760–1804) belief in the Second Coming and Millennium influenced his participation in the campaign to abolish slavery, the French Revolution and America. It is shown how Millenarianism was a force that shaped Morgan John Rhys’ worldview and influenced his social action and campaigns. Also, it is shown how William Williams, Pantycelyn (1717–91), preceded Morgan John Rhys in this context. My argument, with comparative reference to Williams and Rhys, is that Evangelicalism and the Enlightenment were not intellectual enemies, and that Millenarianism was one of the most important driving forces in the lives of these two men, who were integral to the life of eighteenth century Wales.