Does a deterritorialized diaspora require at least some vestigial recognition of an original homeland to build its sense of social cohesion?

D E T E R R I T O R I A L I Z E D D I A S P O R A S

Does a deterritorialized diaspora require at least some vestigial recognition of an original homeland to build its sense of social cohesion?
Using published sources and the web, investigate the spread of carnival from Brazil and Trinidad to parts of the Caribbean and to Europe and North  America. What does this tell you about how a territoriality diaspora is socially constructed?