Ring warsa 130 M, Ptolemy, sane kaiusin olih Hipparchus lan jadma Babilonia, nganggen simbol antuk 0 (lingkaran cenik teken palang lantang) ring sistem angka sexagesimal utawi nganggen angka alfabet Yunani.
By 130 C.E., Ptolemy, influenced by Hipparchus and the Babylonians, was using a symbol for zero (a small circle with a long overbar) within a sexagesimal numeral system otherwise using alphabetic Greek numerals.