The First Vatican Council discussed the need for a common code for the Eastern Churches, but no concrete action was taken. Only after the benefits of the Latin Church's 1917 Code of Canon Law were appreciated was a serious effort made to codify Eastern Catholic Churches canon laws. This came to fruition with the promulgation of the 1990 "Code of Canons of the Eastern Churches", which took effect in 1991. It is a framework document that contains canons that are a consequence of the "common" patrimony of the Churches of the East: each individual "" Church also has its own canons, its own particular law, layered on top of this code.