Simplify the following text for a Grade 8 native English-speaking person.
Original: Chaim Azriel Weizmann , , ( 27 November 1874 â `` 9 November 1952 ) was a Zionist leader , President of the Zionist Organization , and the first President of the State of Israel .
Simplified: Chaim Azriel Weizmann , ( November 1874 â `` 9 November 1952 ) was the first President of Israel .