The Persian astronomer Jamshīd al-Kāshī produced 9 sexagesimal digits, roughly the equivalent of 16 decimal digits, in 1424 using a polygon with 3×228 sides, which stood as the world record for about 180 years.
Astronom Persia, Jamshīd al-Kāsh ngemolihang 9 digit sexagesimal, kirang langkung pateh sareng 16 digit desimal, ring warsa 1424 nganggén poligon sareng sisi 3x228, sané manados rekor dunia selami sawatara 180 warsa.