Complex sentence: He was assigned to study and prepare summary reports on the Zionist movement and various Jewish organisations and even learned a smattering of Hebrew and Yiddish, gaining a reputation as a specialist in Zionist and Jewish matters.
Split into simpler sentences: He was assigned to study and prepare summary reports on the Zionist movement and various Jewish organisations. He even learned a smattering of Hebrew and Yiddish, gaining a reputation as a specialist in Zionist and Jewish matters.