Two important things to know about the Mexican Day of the Dead (Día de los Muertos) are:
1. It is a holiday with a complex history, and therefore its observance varies quite a bit by region and by degree of urbanization.
This is a tradition celebrated by the Mexican Natives, most Mexican Americans (including myself) don’t even acknowledge this day, unless they happen to be visiting mexico at the time of this event.
Mexico's Day of the Dead - TeacherVision
The Civil War, which Sidney Mead calls "thecenter of American history," was the second great event that involved the national self-understanding sodeeply as to require expression in civil religion.