Baptist beliefs. As revivalism spread through the Presbyterian churches, the Old Side–New Side Controversy broke out between the anti-revival "Old Side" and pro-revival "New Side". At issue was the place of revivalism in American Presbyterianism, specifically the "relation between doctrinal orthodoxy and experimental knowledge of Christ." The New Side, led by Gilbert Tennent and Jonathan Dickinson, believed that strict adherence to orthodoxy was meaningless if one lacked a personal religious experience, a sentiment expressed in Tennent's 1739 sermon "The Danger of an Unconverted Ministry". Whitefield's tour had helped the revival party grow and only worsened the controversy. When the Presbyterian Synod of Philadelphia met in May 1741, the Old Side expelled the New Side, which then reorganized itself into the Synod of New York. Aftermath Historian John Howard Smith noted that the Great Awakening made sectarianism an essential characteristic of American Christianity. While the Awakening divided many Protestant churches between Old and New Lights, it also unleashed a strong impulse towards interdenominational unity among the various Protestant denominations. Evangelicals considered the new birth to be "a bond of fellowship that transcended disagreements on fine points of doctrine and polity", allowing Anglicans, Presbyterians, Congregationalists and others to cooperate across denominational lines. While divisions between Old and New Lights remained, New Lights became less radical over time and evangelicalism became more mainstream. By 1758, the Old Side–New Side split in the Presbyterian Church had been healed and the two factions reunited. In part, this was due to the growth of the New Side and the numerical decline of the Old Side. In 1741, the pro-revival party had around 22 ministers, but this number had increased to 73 by 1758. While the fervor of the Awakening would fade, the acceptance of revivalism and insistence on personal conversion would remain recurring features in 18th- and 19th-century Presbyterianism. The Great Awakening inspired the creation of evangelical educational institutions. In 1746, New Side Presbyterians founded what would become Princeton University. In 1754, the efforts of Eleazar Wheelock led to what would become Dartmouth College, originally established to train Native American boys for missionary work among their own people. While initially resistant, well-established Yale University came to embrace revivalism and played a leading role in American evangelicalism for the next century. Revival theology The Great Awakening was not the first time that Protestant churches had experienced revival; however, it was the first time a common evangelical identity