Rumi Digit Eight

It marks eight in Rumi notation.

Also called Fez notation, the system served calculation and record-keeping. Manuscripts use its signs for quantities, folios (numbered leaves), chapters, or quires (folded bundles of leaves). Rumi signs also appear in religious, scientific, mathematical, and accounting works, and on astronomical instruments.

Unlike decimal notation, Rumi totals add separate signs for units, tens, and hundreds; bars can mark multipliers. Here 𐹧 contributes eight units to a total.

How did the Rumi system develop?

Its earliest surviving mention is in a mathematics book.

The earliest surviving mention is in al-Uqlīdisī’s arithmetic, a mathematics book completed in Damascus in 952–53 CE. Later texts from the late twelfth century onward attest the signs in al-Andalus (Muslim-ruled Iberia) and Morocco. There they were also called Fez signs and became popular with public administrators.

Proposed links point to Coptic or Greek-Coptic numerals; Coptic was a historic Egyptian language and writing tradition. Historic evidence leaves the transition into a distinct Rumi system unsettled.

Why do old manuscripts show different shapes?

Scribes used varying handwritten forms.

Manuscripts preserve several shapes, and the encoded character is one representative form. A handwritten sign in an old source need not match this printed glyph exactly.

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