👤 PersonGhiyath al-Din Jamshid Mas'ud al-Kashi1380–1429WikipediaWikipedia (es)Wikidata🌍 View on the globeInventions and discoveries · 21424Al-Kashi pi and decimal fractionsDiscovery · discoverer1420-1437Ulugh Beg observatory and star catalogueInstitution of knowledge · discoverer
