 Manila was originally divided into two representative districts from 1907 to 1949.When seats for the upper house of the Philippine Legislature were elected from territory-based districts between 1916 and 1935, the city formed part of the fourth senatorial district which elected two out of the 24-member senate.In the disruption caused by the Second World War, Manila was incorporated into the City of Greater Manila on January 1, 1942 through Manuel Quezon's Executive Order No.