The series Conciliorum Oecumenicorum Generaliumque Decreta (COGD) contains confessional documents from  Churches and Ecumenical organisations in the World with start in Nicæa 325 until today. The principal series are seen as successors to Migne's Patrologiae.
The COGD series includes confessional documents from various Churches and Ecumenical organizations, spanning from the Council of Nicæa in 325 to the contemporary era. These primary documents are analogous to those found in Migne's Patrologiae.