Arabic numerals in its entry in the "Oxford English Dictionary", which helps to distinguish it from "Arabic numerals" as the Eastern Arabic numerals. Alternative names are Western Arabic numerals, Western numerals, Hindu–Arabic numerals and Unicode calls them digits. The decimal Hindu–Arabic numeral system with zero was developed in India by around AD 700. The development was gradual, spanning several centuries, but the decisive step was probably provided by Brahmagupta's formulation of zero as a number in AD 628. The system was revolutionary by including zero in positional notation, thereby limiting the number of individual digits to ten. It is considered an important
Kaktovik Inupiaq numerals Kaktovik Inupiaq numerals Inuit languages, like other Eskimo–Aleut languages (and Celtic and Mayan languages as well), use a vigesimal counting system. Inuit counting has sub-bases at 5, 10, and 15. Arabic numerals, consisting of 10 distinct digits (0-9) are not adequate to represent a base-20 system. Students from Kaktovik, Alaska, came up with the "Kaktovik Inupiaq numerals", which has since gained wide use among Alaskan Iñupiat, and has been considered in other countries where dialects of the Inuit language are spoken. The numeral system has helped to revive counting in Inuit languages, which had been falling into disuse among Inuit