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Postal History

1 documented theory filed under this subject.

The "Satanic" Postal ServiceThis theory claimed that the number 666 was being hidden in stamp or postal numbering systems, turning ordinary mail into a subtle vehicle of apocalyptic symbolism. It belonged to a wider tradition of nineteenth-century Protestant number anxiety, in which serial marks, printed numerals, and administrative codes were scanned for signs of the Beast from Revelation. In postal form, the theory attached itself to the rise of standardized state paperwork, machine numbering, and expanding print bureaucracy.Updated Apr 16, 2026