Public index · Cipher
Ἶσις
420
Calculated
Greek Ἶσις in Milesian isopsephy
Ι 10 + Σ 200 + Ι 10 + Σ 200 = 420. A Greek letter-sum, not an English one.
What it supports
An exact Milesian isopsephy of the four-letter Greek spelling Ἶσις. Historical letter-number practice, reproducible.
What it does not
English ISIS is not 420 (ordinal 56 · a miss). Does not merge 420 with 42 or with 4°20′. Does not prove a cult of 42.
Calculation
Ι=10, Σ=200, Ι=10, Σ=200 → 420
Greek Milesian isopsephy
ExactnessCipher result
Form420
Unitisopsephy
Strengthreproducible