The number of Regular Baptists began to increase over the number of General or Free Baptists after the 1707 formation of the Philadelphia Baptist Association (PBA), which in 1742 developed a Confession of Faith. The influence and mission program of the Philadelphia Baptists shifted many of the Free Baptists to Regular Baptists. John Asplund traveled the United States and created the first comprehensive list of Baptist denominations in the United States in 1790 entitled "Annual Register of the Baptist Denomination in America". He found that the greatest number of Baptist churches at that time were Regular Baptist churches.