sentences:  Sorsogon had been divided into two congressional districts since 1907, which included Masbate until 1922.From 1978 to 1984, it was part of the representation of Region V in the Interim Batasang Pambansa, and it elected two assemblymen at-large in the Regular Batasang Pambansa from 1984 to 1986.Notes
  
  Notes