The "baptismal regeneration" controversy was started by a sermon in the Metropolitan Tabernacle on 5 June 1864. That was when Spurgeon spoke to Anglican Christian leaders who supported infant baptism. The sermon is 16 pages long, so it took around an hour for Spurgeon to preach it. Over 350,000 copies of this sermon were sold. However, Spurgeon did work with Anglicans, as well as people from other denominations all his life.