Complex sentence: By late 1992 a movement to crown Schneerson as "King Messiah" gained prominence within the Chabad movement and a major rally was organised in Crown Heights where the Rebbe was to be crowned under the leadership of senior Chabad rabbi and youth movement director Rabbi Shmuel Butman.
Split into simpler sentences: By late 1992 a movement to crown Schneerson as "King Messiah" gained prominence within Chabad. A major rally was organised in Crown Heights where the Rebbe was to be crowned under the leadership of Chabad rabbi and youth movement director Rabbi Shmuel Butman.