Yamaksa Dictionary

Shichi-nagare means Seven streams, when translated literally, and is a therm used when referring to Hakatas seven districts.
Hakats seven districts are: Ebisu-nagare, Daikoku-nagare, Doi-nagare, Higashi-nagare, Nishi-nagare, Nakasu-nagare and Chiyo-nagare.
Hakata has been split into these seven districts since 1967 when the town boundaries were changed in a reorganisation project.