Complex sentence: Britt was elected to the Board of Supervisors in November of 1979,1980,1984, and 1988 and served as President of the Board of Supervisors from 1989 to 1990.
Split into simpler sentences: Britt was elected to the Board of Supervisors in November of 1979,1980,1984, and 1988. Britt served as President of the Board of Supervisors from 1989 to 1990.