Judah ben David Hayyuj (Hebrew: יְהוּדָה בֶּן דָּוִד חַיּוּג׳, romanized: Yəhuḏā ben Dawiḏ Ḥayyuj, Arabic: أبو زكريا يحيى بن داؤد حيوج, romanized: Abū Zakariyya Yahyá ibn Dawūd Ḥayyūj) was a Moroccan Jew of Al-Andalus born in North Africa. He was a linguist and is regarded as the father of Hebrew scientific grammar.
Judah was born in Fez, then part of the Idrisid dynasty, about 945. At an early age, he went to Córdoba during the Golden age of Jewish culture in Spain, where he seems to have remained till his death about 1000. He was the first to propose that Hebrew words stem from triconsonantal roots.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.