Arabic numerals milestone in the development of mathematics. One may distinguish between this positional "system", which is identical throughout the family, and the precise glyphs used to write the numerals, which varied regionally. The first universally accepted inscription containing the use of the 0 glyph in India is first recorded in the 9th century, in an inscription at Gwalior in Central India dated to 870. Numerous Indian documents on copper plates exist, with the same symbol for zero in them, dated back as far as the 6th century AD, but their dates are uncertain. Inscriptions in Indonesia and Cambodia dating to AD
Sinhala numerals have a zero and they also did not have zero concept holder. They included separate symbols for 10, 40, 50, 100, 1000. These numerals were also regarded as "Lith Lakunu" or ephemeris numbers by W. A. De Silva in his "Catalogue of Palm leaf manuscripts in the library of Colombo Museum". This set of numerals was known as "Sinhala illakkam" or Sinhala archaic numerals. Sinhala numerals or "Sinhala illakkam" were used in the Kandyan convention which was signed between Kandyan Chieftains and the British governor, Robert Brownrig, in 1815. Eleven clauses were numbered in Arabic numerals in the English part