Complex sentence: Zev Yaroslavsky (born December 21,1948) served on the Los Angeles City Council from 1975 until 1994, when he was elected to the Los Angeles County Board of Supervisors.
Split into simpler sentences: Zev Yaroslavsky (born December 21,1948) is a Los Angeles County politician. He served on the Los Angeles City Council from 1975 until 1994, when he was elected to the Los Angeles County Board of Supervisors.