 Essentially non-sectarian, with little missionary zeal, the Unitarian movement has grown slowly, and its influence had chiefly operated through general culture and the literature of the country.Many of its clergymen had been trained in other denominations, but the Harvard Divinity School was distinctly Unitarian from its formation, in 1816, until 1870, when it became a non-sectarian department of the university.The Meadville Lombard Theological School was founded at Meadville, Pennsylvania in 1844, and the Starr King School for the Ministry at Berkeley, California in 1904.