Devanagari Digit One

It marks one unit in a Devanagari number. Hindi, Marathi, Nepali, Sanskrit, and other languages use Devanagari. In a mixed-script message, this digit tells you how the number was written, not the writer's language.

Where did १ come from?

It evolved through Brahmi, Gupta, and Nagari numeral traditions. The recognisable ancestor is not this exact glyph: Brahmi, an early South Asian script, had numerals around the middle of the third century BCE. Gupta forms developed during the early fourth to late sixth centuries CE, and Nagari forms grew from them around the seventh century CE.

These numerals were used to write quantities and support calculation. Decimal place value later made a digit's position part of its value, allowing compact arithmetic. By about 1030, the scholar al-Biruni described regional differences in Indian numeral forms and reported Nagari figures in Arab scholarship. Their transmission connects the Indian numeral family to Western 1: a historical link, not a claim that the two shapes look alike.

Why does १ look different in different places?

Fonts and handwriting can change its outline without changing its value. Computer fonts produce different numeral forms, and handwritten versions can be hard to recognise. When the shape looks unfamiliar, check the surrounding script and number before treating it as a different digit.