Complex sentence: In December 1984, Berkeley was the first city to pass a domestic partner policy for city and school district employees after a year of work by the Domestic Partner Task Force chaired by Leland Traiman.
Split into simpler sentences: In December 1984, the City of Berkeley was the first city to pass a domestic partner policy for city and school district employees. This followed a year of work by the Domestic Partner Task Force chaired by Leland Traiman.