the first Ashkenazi chief rabbi of the British Mandatory Palestine, the founder of Yeshiva Mercaz HaRav Kook (The Central Universal Yeshiva), Jewish thinker, Halakhist, Kabbalist and a renowned Torah scholar. He is known in Hebrew as הרב אברהם יצחק הכהן קוק HaRav Avraham Yitzchak HaCohen Kook, and by the acronym הראיה (HaRaAYaH), or simply as "HaRav."