Thabit ibn Qurra al-Harrani was born in Harran in 826 CE and was fluent in Greek, Syriac, and Arabic. The mathematician Muhammad ibn Musa ibn Shakir brought him to Baghdad, where he worked at the House of Wisdom.
Thabit translated into Arabic the works of Euclid, Archimedes, and Ptolemy, corrected earlier translations, and made original contributions to geometry, trigonometry, and astronomy, studying planetary motion and calculating the length of the solar year with notable precision.
Legacy
Thabit founded a scholarly dynasty that his sons and grandsons continued for generations. His precise translations and corrections of major Greek works were among the most important channels that preserved ancient scientific heritage and later transmitted it to Europe.
