2016 Wesleyan Discipline:12

12. At its first General Conference in 1844, the Connection had adopted an article of religion on “Sanctification,” becoming the first denomination to do so. But the doctrine and experience suffered neglect and decline among all branches of Methodism in the mid-nineteenth century. To renew them, God raised up a revival of holiness promoted through literature, evangelistic meetings, and camp meetings that swept throughout Methodism and across denominational lines. The first national camp meeting, which developed into the National Holiness Association, was held in 1867. The revival led to the establishment of several new holiness denominations and to the renewing and redirecting of others.