I am probably the only Episcopalian child EVER to receive a copy of the Westminster Catechism at my Confirmation. And then I went and "Paped" on them . . . they would be scandalized if they knew.
Great diagram. I would guess that the many schisms from the 1830’s to 1860’s involved the slavery issue. The splits in America’s churches between pro and anti-slavery types were a precursor to the split in the Union.